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Finding the Fourth Proportional to 636,601.60, 878,517.54 and 350,126.47

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Solution

The fourth proportional to 636,601.60, 878,517.54 and 350,126.47 is: 483,178.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,601.60 : 878,517.54 = 350,126.47 : x
  2. Step 2: Convert to fraction form
    636,601.60/878,517.54 = 350,126.47/x
  3. Step 3: Cross multiply
    636,601.60x = 878,517.54 × 350,126.47
  4. Step 4: Simplify right side
    636,601.60x = 307,592,245,113.28
  5. Step 5: Solve for x
    x = 307,592,245,113.28/636,601.60
  6. Step 6: Final answer
    x = 483,178.56

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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.