Home / 984,985.20-1,477,477.80-275,012.10

Finding the Fourth Proportional to 984,985.20, 1,477,477.80 and 275,012.10

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Solution

The fourth proportional to 984,985.20, 1,477,477.80 and 275,012.10 is: 412,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,985.20 : 1,477,477.80 = 275,012.10 : x
  2. Step 2: Convert to fraction form
    984,985.20/1,477,477.80 = 275,012.10/x
  3. Step 3: Cross multiply
    984,985.20x = 1,477,477.80 × 275,012.10
  4. Step 4: Simplify right side
    984,985.20x = 406,324,272,481.38
  5. Step 5: Solve for x
    x = 406,324,272,481.38/984,985.20
  6. Step 6: Final answer
    x = 412,518.15

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Double scale
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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.