Home / 747,409.13-1,121,113.69-242,392.55

Finding the Fourth Proportional to 747,409.13, 1,121,113.69 and 242,392.55

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Solution

The fourth proportional to 747,409.13, 1,121,113.69 and 242,392.55 is: 363,588.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,409.13 : 1,121,113.69 = 242,392.55 : x
  2. Step 2: Convert to fraction form
    747,409.13/1,121,113.69 = 242,392.55/x
  3. Step 3: Cross multiply
    747,409.13x = 1,121,113.69 × 242,392.55
  4. Step 4: Simplify right side
    747,409.13x = 271,749,608,355.81
  5. Step 5: Solve for x
    x = 271,749,608,355.81/747,409.13
  6. Step 6: Final answer
    x = 363,588.83

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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.