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Finding the Fourth Proportional to 636,974.92, 878,925 and 364,990.52

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Solution

The fourth proportional to 636,974.92, 878,925 and 364,990.52 is: 503,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,974.92 : 878,925 = 364,990.52 : x
  2. Step 2: Convert to fraction form
    636,974.92/878,925 = 364,990.52/x
  3. Step 3: Cross multiply
    636,974.92x = 878,925 × 364,990.52
  4. Step 4: Simplify right side
    636,974.92x = 320,799,292,791
  5. Step 5: Solve for x
    x = 320,799,292,791/636,974.92
  6. Step 6: Final answer
    x = 503,629.39

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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.