Home / 661,620.10-992,430.15-474,996.10

Finding the Fourth Proportional to 661,620.10, 992,430.15 and 474,996.10

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Solution

The fourth proportional to 661,620.10, 992,430.15 and 474,996.10 is: 712,494.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,620.10 : 992,430.15 = 474,996.10 : x
  2. Step 2: Convert to fraction form
    661,620.10/992,430.15 = 474,996.10/x
  3. Step 3: Cross multiply
    661,620.10x = 992,430.15 × 474,996.10
  4. Step 4: Simplify right side
    661,620.10x = 471,400,450,772.42
  5. Step 5: Solve for x
    x = 471,400,450,772.42/661,620.10
  6. Step 6: Final answer
    x = 712,494.15

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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.