Home / 382,645.30-574,028.70-129,949.60

Finding the Fourth Proportional to 382,645.30, 574,028.70 and 129,949.60

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Solution

The fourth proportional to 382,645.30, 574,028.70 and 129,949.60 is: 194,945.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,645.30 : 574,028.70 = 129,949.60 : x
  2. Step 2: Convert to fraction form
    382,645.30/574,028.70 = 129,949.60/x
  3. Step 3: Cross multiply
    382,645.30x = 574,028.70 × 129,949.60
  4. Step 4: Simplify right side
    382,645.30x = 74,594,799,953.52
  5. Step 5: Solve for x
    x = 74,594,799,953.52/382,645.30
  6. Step 6: Final answer
    x = 194,945.03

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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.