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Finding the Fourth Proportional to 383,046.75, 574,570.13 and 120,390.75

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Solution

The fourth proportional to 383,046.75, 574,570.13 and 120,390.75 is: 180,586.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,046.75 : 574,570.13 = 120,390.75 : x
  2. Step 2: Convert to fraction form
    383,046.75/574,570.13 = 120,390.75/x
  3. Step 3: Cross multiply
    383,046.75x = 574,570.13 × 120,390.75
  4. Step 4: Simplify right side
    383,046.75x = 69,172,928,276.34
  5. Step 5: Solve for x
    x = 69,172,928,276.34/383,046.75
  6. Step 6: Final answer
    x = 180,586.13

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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.