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Finding the Fourth Proportional to 499,004.52, 688,631.08 and 272,650

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Solution

The fourth proportional to 499,004.52, 688,631.08 and 272,650 is: 376,259.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,004.52 : 688,631.08 = 272,650 : x
  2. Step 2: Convert to fraction form
    499,004.52/688,631.08 = 272,650/x
  3. Step 3: Cross multiply
    499,004.52x = 688,631.08 × 272,650
  4. Step 4: Simplify right side
    499,004.52x = 187,755,263,962
  5. Step 5: Solve for x
    x = 187,755,263,962/499,004.52
  6. Step 6: Final answer
    x = 376,259.65

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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.