Home / 747,409.69-1,121,114.54-242,393.12

Finding the Fourth Proportional to 747,409.69, 1,121,114.54 and 242,393.12

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Solution

The fourth proportional to 747,409.69, 1,121,114.54 and 242,393.12 is: 363,589.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,409.69 : 1,121,114.54 = 242,393.12 : x
  2. Step 2: Convert to fraction form
    747,409.69/1,121,114.54 = 242,393.12/x
  3. Step 3: Cross multiply
    747,409.69x = 1,121,114.54 × 242,393.12
  4. Step 4: Simplify right side
    747,409.69x = 271,750,444,410.43
  5. Step 5: Solve for x
    x = 271,750,444,410.43/747,409.69
  6. Step 6: Final answer
    x = 363,589.67

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Half scale
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Double scale
Find fourth proportional to 747,410.69, 1,121,116.04 and 242,394.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.