Home / 399,738.60-598,733.10-347,250.60

Finding the Fourth Proportional to 399,738.60, 598,733.10 and 347,250.60

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Solution

The fourth proportional to 399,738.60, 598,733.10 and 347,250.60 is: 520,115.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,738.60 : 598,733.10 = 347,250.60 : x
  2. Step 2: Convert to fraction form
    399,738.60/598,733.10 = 347,250.60/x
  3. Step 3: Cross multiply
    399,738.60x = 598,733.10 × 347,250.60
  4. Step 4: Simplify right side
    399,738.60x = 207,910,428,214.86
  5. Step 5: Solve for x
    x = 207,910,428,214.86/399,738.60
  6. Step 6: Final answer
    x = 520,115.97

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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.