Home / 987,079.60-1,479,712.20-986,474.80

Finding the Fourth Proportional to 987,079.60, 1,479,712.20 and 986,474.80

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Solution

The fourth proportional to 987,079.60, 1,479,712.20 and 986,474.80 is: 1,478,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,079.60 : 1,479,712.20 = 986,474.80 : x
  2. Step 2: Convert to fraction form
    987,079.60/1,479,712.20 = 986,474.80/x
  3. Step 3: Cross multiply
    987,079.60x = 1,479,712.20 × 986,474.80
  4. Step 4: Simplify right side
    987,079.60x = 1,459,698,796,552.56
  5. Step 5: Solve for x
    x = 1,459,698,796,552.56/987,079.60
  6. Step 6: Final answer
    x = 1,478,805.56

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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.