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Finding the Fourth Proportional to 636,483.67, 878,370.02 and 350,025.55

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Solution

The fourth proportional to 636,483.67, 878,370.02 and 350,025.55 is: 483,047.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,483.67 : 878,370.02 = 350,025.55 : x
  2. Step 2: Convert to fraction form
    636,483.67/878,370.02 = 350,025.55/x
  3. Step 3: Cross multiply
    636,483.67x = 878,370.02 × 350,025.55
  4. Step 4: Simplify right side
    636,483.67x = 307,451,949,354.01
  5. Step 5: Solve for x
    x = 307,451,949,354.01/636,483.67
  6. Step 6: Final answer
    x = 483,047.66

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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.