Home / 391,621.40-587,432.10-96,133.40

Finding the Fourth Proportional to 391,621.40, 587,432.10 and 96,133.40

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Solution

The fourth proportional to 391,621.40, 587,432.10 and 96,133.40 is: 144,200.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,621.40 : 587,432.10 = 96,133.40 : x
  2. Step 2: Convert to fraction form
    391,621.40/587,432.10 = 96,133.40/x
  3. Step 3: Cross multiply
    391,621.40x = 587,432.10 × 96,133.40
  4. Step 4: Simplify right side
    391,621.40x = 56,471,845,042.14
  5. Step 5: Solve for x
    x = 56,471,845,042.14/391,621.40
  6. Step 6: Final answer
    x = 144,200.10

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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.