Home / 497,864.52-687,105.90-304,385.64

Finding the Fourth Proportional to 497,864.52, 687,105.90 and 304,385.64

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Solution

The fourth proportional to 497,864.52, 687,105.90 and 304,385.64 is: 420,084.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,864.52 : 687,105.90 = 304,385.64 : x
  2. Step 2: Convert to fraction form
    497,864.52/687,105.90 = 304,385.64/x
  3. Step 3: Cross multiply
    497,864.52x = 687,105.90 × 304,385.64
  4. Step 4: Simplify right side
    497,864.52x = 209,145,169,119.28
  5. Step 5: Solve for x
    x = 209,145,169,119.28/497,864.52
  6. Step 6: Final answer
    x = 420,084.50

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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.