Home / 731,751.40-1,098,318.30-451,815.40

Finding the Fourth Proportional to 731,751.40, 1,098,318.30 and 451,815.40

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Solution

The fourth proportional to 731,751.40, 1,098,318.30 and 451,815.40 is: 678,149.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,751.40 : 1,098,318.30 = 451,815.40 : x
  2. Step 2: Convert to fraction form
    731,751.40/1,098,318.30 = 451,815.40/x
  3. Step 3: Cross multiply
    731,751.40x = 1,098,318.30 × 451,815.40
  4. Step 4: Simplify right side
    731,751.40x = 496,237,122,041.82
  5. Step 5: Solve for x
    x = 496,237,122,041.82/731,751.40
  6. Step 6: Final answer
    x = 678,149.88

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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.