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Finding the Fourth Proportional to 530,610.62, 732,238.25 and 288,892.71

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Solution

The fourth proportional to 530,610.62, 732,238.25 and 288,892.71 is: 398,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,610.62 : 732,238.25 = 288,892.71 : x
  2. Step 2: Convert to fraction form
    530,610.62/732,238.25 = 288,892.71/x
  3. Step 3: Cross multiply
    530,610.62x = 732,238.25 × 288,892.71
  4. Step 4: Simplify right side
    530,610.62x = 211,538,290,963.69
  5. Step 5: Solve for x
    x = 211,538,290,963.69/530,610.62
  6. Step 6: Final answer
    x = 398,669.54

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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.