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Finding the Fourth Proportional to 488,287.20, 732,430.80 and 409,555.20

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Solution

The fourth proportional to 488,287.20, 732,430.80 and 409,555.20 is: 614,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,287.20 : 732,430.80 = 409,555.20 : x
  2. Step 2: Convert to fraction form
    488,287.20/732,430.80 = 409,555.20/x
  3. Step 3: Cross multiply
    488,287.20x = 732,430.80 × 409,555.20
  4. Step 4: Simplify right side
    488,287.20x = 299,970,842,780.16
  5. Step 5: Solve for x
    x = 299,970,842,780.16/488,287.20
  6. Step 6: Final answer
    x = 614,332.80

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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.