Home / 724,405.46-1,086,165.32-345,442.10

Finding the Fourth Proportional to 724,405.46, 1,086,165.32 and 345,442.10

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Solution

The fourth proportional to 724,405.46, 1,086,165.32 and 345,442.10 is: 517,951.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,405.46 : 1,086,165.32 = 345,442.10 : x
  2. Step 2: Convert to fraction form
    724,405.46/1,086,165.32 = 345,442.10/x
  3. Step 3: Cross multiply
    724,405.46x = 1,086,165.32 × 345,442.10
  4. Step 4: Simplify right side
    724,405.46x = 375,207,221,929.94
  5. Step 5: Solve for x
    x = 375,207,221,929.94/724,405.46
  6. Step 6: Final answer
    x = 517,951.96

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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.