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Finding the Fourth Proportional to 539,654.40, 809,578.80 and 224,143.20

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Solution

The fourth proportional to 539,654.40, 809,578.80 and 224,143.20 is: 336,255.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,654.40 : 809,578.80 = 224,143.20 : x
  2. Step 2: Convert to fraction form
    539,654.40/809,578.80 = 224,143.20/x
  3. Step 3: Cross multiply
    539,654.40x = 809,578.80 × 224,143.20
  4. Step 4: Simplify right side
    539,654.40x = 181,461,582,884.16
  5. Step 5: Solve for x
    x = 181,461,582,884.16/539,654.40
  6. Step 6: Final answer
    x = 336,255.17

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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.