Home / 391,347.18-587,001.69-229,331.52

Finding the Fourth Proportional to 391,347.18, 587,001.69 and 229,331.52

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Solution

The fourth proportional to 391,347.18, 587,001.69 and 229,331.52 is: 343,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,347.18 : 587,001.69 = 229,331.52 : x
  2. Step 2: Convert to fraction form
    391,347.18/587,001.69 = 229,331.52/x
  3. Step 3: Cross multiply
    391,347.18x = 587,001.69 × 229,331.52
  4. Step 4: Simplify right side
    391,347.18x = 134,617,989,810.27
  5. Step 5: Solve for x
    x = 134,617,989,810.27/391,347.18
  6. Step 6: Final answer
    x = 343,986.10

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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.