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Finding the Fourth Proportional to 534,428.72, 737,523.52 and 304,981.40

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Solution

The fourth proportional to 534,428.72, 737,523.52 and 304,981.40 is: 420,881.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,428.72 : 737,523.52 = 304,981.40 : x
  2. Step 2: Convert to fraction form
    534,428.72/737,523.52 = 304,981.40/x
  3. Step 3: Cross multiply
    534,428.72x = 737,523.52 × 304,981.40
  4. Step 4: Simplify right side
    534,428.72x = 224,930,955,662.53
  5. Step 5: Solve for x
    x = 224,930,955,662.53/534,428.72
  6. Step 6: Final answer
    x = 420,881.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.