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Finding the Fourth Proportional to 439,773.30, 658,675.80 and 380,724.30

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Solution

The fourth proportional to 439,773.30, 658,675.80 and 380,724.30 is: 570,234.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,773.30 : 658,675.80 = 380,724.30 : x
  2. Step 2: Convert to fraction form
    439,773.30/658,675.80 = 380,724.30/x
  3. Step 3: Cross multiply
    439,773.30x = 658,675.80 × 380,724.30
  4. Step 4: Simplify right side
    439,773.30x = 250,773,882,881.94
  5. Step 5: Solve for x
    x = 250,773,882,881.94/439,773.30
  6. Step 6: Final answer
    x = 570,234.44

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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.