Home / 387,122.60-579,906.30-268,927.40

Finding the Fourth Proportional to 387,122.60, 579,906.30 and 268,927.40

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Solution

The fourth proportional to 387,122.60, 579,906.30 and 268,927.40 is: 402,850.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,122.60 : 579,906.30 = 268,927.40 : x
  2. Step 2: Convert to fraction form
    387,122.60/579,906.30 = 268,927.40/x
  3. Step 3: Cross multiply
    387,122.60x = 579,906.30 × 268,927.40
  4. Step 4: Simplify right side
    387,122.60x = 155,952,693,502.62
  5. Step 5: Solve for x
    x = 155,952,693,502.62/387,122.60
  6. Step 6: Final answer
    x = 402,850.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.