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Finding the Fourth Proportional to 502,061.25, 692,849.39 and 275,711.61

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Solution

The fourth proportional to 502,061.25, 692,849.39 and 275,711.61 is: 380,484.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,061.25 : 692,849.39 = 275,711.61 : x
  2. Step 2: Convert to fraction form
    502,061.25/692,849.39 = 275,711.61/x
  3. Step 3: Cross multiply
    502,061.25x = 692,849.39 × 275,711.61
  4. Step 4: Simplify right side
    502,061.25x = 191,026,619,425.86
  5. Step 5: Solve for x
    x = 191,026,619,425.86/502,061.25
  6. Step 6: Final answer
    x = 380,484.69

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1.5x scale

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.