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Finding the Fourth Proportional to 530,468.52, 732,055.88 and 288,758.04

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Solution

The fourth proportional to 530,468.52, 732,055.88 and 288,758.04 is: 398,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,468.52 : 732,055.88 = 288,758.04 : x
  2. Step 2: Convert to fraction form
    530,468.52/732,055.88 = 288,758.04/x
  3. Step 3: Cross multiply
    530,468.52x = 732,055.88 × 288,758.04
  4. Step 4: Simplify right side
    530,468.52x = 211,387,021,079.28
  5. Step 5: Solve for x
    x = 211,387,021,079.28/530,468.52
  6. Step 6: Final answer
    x = 398,491.17

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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.