Home / 738,649.50-1,107,652.44-392,357.18

Finding the Fourth Proportional to 738,649.50, 1,107,652.44 and 392,357.18

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Solution

The fourth proportional to 738,649.50, 1,107,652.44 and 392,357.18 is: 588,364.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,649.50 : 1,107,652.44 = 392,357.18 : x
  2. Step 2: Convert to fraction form
    738,649.50/1,107,652.44 = 392,357.18/x
  3. Step 3: Cross multiply
    738,649.50x = 1,107,652.44 × 392,357.18
  4. Step 4: Simplify right side
    738,649.50x = 434,595,387,778.52
  5. Step 5: Solve for x
    x = 434,595,387,778.52/738,649.50
  6. Step 6: Final answer
    x = 588,364.83

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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.