Home / 929,719.20-1,394,578.80-330,699.90

Finding the Fourth Proportional to 929,719.20, 1,394,578.80 and 330,699.90

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Solution

The fourth proportional to 929,719.20, 1,394,578.80 and 330,699.90 is: 496,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,719.20 : 1,394,578.80 = 330,699.90 : x
  2. Step 2: Convert to fraction form
    929,719.20/1,394,578.80 = 330,699.90/x
  3. Step 3: Cross multiply
    929,719.20x = 1,394,578.80 × 330,699.90
  4. Step 4: Simplify right side
    929,719.20x = 461,187,069,702.12
  5. Step 5: Solve for x
    x = 461,187,069,702.12/929,719.20
  6. Step 6: Final answer
    x = 496,049.85

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Similar ratio
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1.5x scale

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.