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Finding the Fourth Proportional to 480,691.62, 720,406.71 and 353,737.62

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Solution

The fourth proportional to 480,691.62, 720,406.71 and 353,737.62 is: 530,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,691.62 : 720,406.71 = 353,737.62 : x
  2. Step 2: Convert to fraction form
    480,691.62/720,406.71 = 353,737.62/x
  3. Step 3: Cross multiply
    480,691.62x = 720,406.71 × 353,737.62
  4. Step 4: Simplify right side
    480,691.62x = 254,834,955,027.43
  5. Step 5: Solve for x
    x = 254,834,955,027.43/480,691.62
  6. Step 6: Final answer
    x = 530,142.29

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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.