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Finding the Fourth Proportional to 636,627.36, 878,545.44 and 350,166.72

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Solution

The fourth proportional to 636,627.36, 878,545.44 and 350,166.72 is: 483,229.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,627.36 : 878,545.44 = 350,166.72 : x
  2. Step 2: Convert to fraction form
    636,627.36/878,545.44 = 350,166.72/x
  3. Step 3: Cross multiply
    636,627.36x = 878,545.44 × 350,166.72
  4. Step 4: Simplify right side
    636,627.36x = 307,637,375,095.76
  5. Step 5: Solve for x
    x = 307,637,375,095.76/636,627.36
  6. Step 6: Final answer
    x = 483,229.90

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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.