Home / 499,074.67-747,904.33-386,229.59

Finding the Fourth Proportional to 499,074.67, 747,904.33 and 386,229.59

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Solution

The fourth proportional to 499,074.67, 747,904.33 and 386,229.59 is: 578,796.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,074.67 : 747,904.33 = 386,229.59 : x
  2. Step 2: Convert to fraction form
    499,074.67/747,904.33 = 386,229.59/x
  3. Step 3: Cross multiply
    499,074.67x = 747,904.33 × 386,229.59
  4. Step 4: Simplify right side
    499,074.67x = 288,862,782,735.13
  5. Step 5: Solve for x
    x = 288,862,782,735.13/499,074.67
  6. Step 6: Final answer
    x = 578,796.72

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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.