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Finding the Fourth Proportional to 530,712, 732,372.08 and 288,997.44

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Solution

The fourth proportional to 530,712, 732,372.08 and 288,997.44 is: 398,810.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,712 : 732,372.08 = 288,997.44 : x
  2. Step 2: Convert to fraction form
    530,712/732,372.08 = 288,997.44/x
  3. Step 3: Cross multiply
    530,712x = 732,372.08 × 288,997.44
  4. Step 4: Simplify right side
    530,712x = 211,653,656,247.48
  5. Step 5: Solve for x
    x = 211,653,656,247.48/530,712
  6. Step 6: Final answer
    x = 398,810.76

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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.