Home / 978,488.20-1,350,324.66-542,913.43

Finding the Fourth Proportional to 978,488.20, 1,350,324.66 and 542,913.43

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Solution

The fourth proportional to 978,488.20, 1,350,324.66 and 542,913.43 is: 749,226.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,488.20 : 1,350,324.66 = 542,913.43 : x
  2. Step 2: Convert to fraction form
    978,488.20/1,350,324.66 = 542,913.43/x
  3. Step 3: Cross multiply
    978,488.20x = 1,350,324.66 × 542,913.43
  4. Step 4: Simplify right side
    978,488.20x = 733,109,391,416.90
  5. Step 5: Solve for x
    x = 733,109,391,416.90/978,488.20
  6. Step 6: Final answer
    x = 749,226.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.