Home / 731,805.40-1,098,399.30-451,869.40

Finding the Fourth Proportional to 731,805.40, 1,098,399.30 and 451,869.40

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Solution

The fourth proportional to 731,805.40, 1,098,399.30 and 451,869.40 is: 678,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,805.40 : 1,098,399.30 = 451,869.40 : x
  2. Step 2: Convert to fraction form
    731,805.40/1,098,399.30 = 451,869.40/x
  3. Step 3: Cross multiply
    731,805.40x = 1,098,399.30 × 451,869.40
  4. Step 4: Simplify right side
    731,805.40x = 496,333,032,651.42
  5. Step 5: Solve for x
    x = 496,333,032,651.42/731,805.40
  6. Step 6: Final answer
    x = 678,230.90

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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.