Home / 724,442.10-1,086,857.55-646,098.90

Finding the Fourth Proportional to 724,442.10, 1,086,857.55 and 646,098.90

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Solution

The fourth proportional to 724,442.10, 1,086,857.55 and 646,098.90 is: 969,321.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,442.10 : 1,086,857.55 = 646,098.90 : x
  2. Step 2: Convert to fraction form
    724,442.10/1,086,857.55 = 646,098.90/x
  3. Step 3: Cross multiply
    724,442.10x = 1,086,857.55 × 646,098.90
  4. Step 4: Simplify right side
    724,442.10x = 702,217,467,511.70
  5. Step 5: Solve for x
    x = 702,217,467,511.70/724,442.10
  6. Step 6: Final answer
    x = 969,321.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.