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Finding the Fourth Proportional to 636,512.92, 878,363.40 and 350,015.92

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Solution

The fourth proportional to 636,512.92, 878,363.40 and 350,015.92 is: 483,008.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,512.92 : 878,363.40 = 350,015.92 : x
  2. Step 2: Convert to fraction form
    636,512.92/878,363.40 = 350,015.92/x
  3. Step 3: Cross multiply
    636,512.92x = 878,363.40 × 350,015.92
  4. Step 4: Simplify right side
    636,512.92x = 307,441,173,545.33
  5. Step 5: Solve for x
    x = 307,441,173,545.33/636,512.92
  6. Step 6: Final answer
    x = 483,008.54

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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.