Home / 987,545.60-1,481,318.40-322,764.80

Finding the Fourth Proportional to 987,545.60, 1,481,318.40 and 322,764.80

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Solution

The fourth proportional to 987,545.60, 1,481,318.40 and 322,764.80 is: 484,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,545.60 : 1,481,318.40 = 322,764.80 : x
  2. Step 2: Convert to fraction form
    987,545.60/1,481,318.40 = 322,764.80/x
  3. Step 3: Cross multiply
    987,545.60x = 1,481,318.40 × 322,764.80
  4. Step 4: Simplify right side
    987,545.60x = 478,117,437,112.32
  5. Step 5: Solve for x
    x = 478,117,437,112.32/987,545.60
  6. Step 6: Final answer
    x = 484,147.20

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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.