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Finding the Fourth Proportional to 636,792.22, 878,763.90 and 350,295.22

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Solution

The fourth proportional to 636,792.22, 878,763.90 and 350,295.22 is: 483,402.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,792.22 : 878,763.90 = 350,295.22 : x
  2. Step 2: Convert to fraction form
    636,792.22/878,763.90 = 350,295.22/x
  3. Step 3: Cross multiply
    636,792.22x = 878,763.90 × 350,295.22
  4. Step 4: Simplify right side
    636,792.22x = 307,826,793,678.56
  5. Step 5: Solve for x
    x = 307,826,793,678.56/636,792.22
  6. Step 6: Final answer
    x = 483,402.25

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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.