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Finding the Fourth Proportional to 731,809.90, 1,098,406.05 and 451,873.90

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Solution

The fourth proportional to 731,809.90, 1,098,406.05 and 451,873.90 is: 678,237.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,809.90 : 1,098,406.05 = 451,873.90 : x
  2. Step 2: Convert to fraction form
    731,809.90/1,098,406.05 = 451,873.90/x
  3. Step 3: Cross multiply
    731,809.90x = 1,098,406.05 × 451,873.90
  4. Step 4: Simplify right side
    731,809.90x = 496,341,025,597.10
  5. Step 5: Solve for x
    x = 496,341,025,597.10/731,809.90
  6. Step 6: Final answer
    x = 678,237.65

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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.