Home / 1,325,545.20-1,986,276.60-986,997.60

Finding the Fourth Proportional to 1,325,545.20, 1,986,276.60 and 986,997.60

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Solution

The fourth proportional to 1,325,545.20, 1,986,276.60 and 986,997.60 is: 1,478,976.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,545.20 : 1,986,276.60 = 986,997.60 : x
  2. Step 2: Convert to fraction form
    1,325,545.20/1,986,276.60 = 986,997.60/x
  3. Step 3: Cross multiply
    1,325,545.20x = 1,986,276.60 × 986,997.60
  4. Step 4: Simplify right side
    1,325,545.20x = 1,960,450,237,136.16
  5. Step 5: Solve for x
    x = 1,960,450,237,136.16/1,325,545.20
  6. Step 6: Final answer
    x = 1,478,976.53

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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.