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Finding the Fourth Proportional to 636,493.92, 878,384.40 and 350,036.16

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Solution

The fourth proportional to 636,493.92, 878,384.40 and 350,036.16 is: 483,062.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,493.92 : 878,384.40 = 350,036.16 : x
  2. Step 2: Convert to fraction form
    636,493.92/878,384.40 = 350,036.16/x
  3. Step 3: Cross multiply
    636,493.92x = 878,384.40 × 350,036.16
  4. Step 4: Simplify right side
    636,493.92x = 307,466,302,379.90
  5. Step 5: Solve for x
    x = 307,466,302,379.90/636,493.92
  6. Step 6: Final answer
    x = 483,062.43

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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.