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Finding the Fourth Proportional to 636,488.92, 878,377.50 and 350,031.16

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Solution

The fourth proportional to 636,488.92, 878,377.50 and 350,031.16 is: 483,055.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,488.92 : 878,377.50 = 350,031.16 : x
  2. Step 2: Convert to fraction form
    636,488.92/878,377.50 = 350,031.16/x
  3. Step 3: Cross multiply
    636,488.92x = 878,377.50 × 350,031.16
  4. Step 4: Simplify right side
    636,488.92x = 307,459,495,242.90
  5. Step 5: Solve for x
    x = 307,459,495,242.90/636,488.92
  6. Step 6: Final answer
    x = 483,055.53

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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.