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Finding the Fourth Proportional to 391,269.60, 586,029.60 and 302,234.40

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Solution

The fourth proportional to 391,269.60, 586,029.60 and 302,234.40 is: 452,675.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,269.60 : 586,029.60 = 302,234.40 : x
  2. Step 2: Convert to fraction form
    391,269.60/586,029.60 = 302,234.40/x
  3. Step 3: Cross multiply
    391,269.60x = 586,029.60 × 302,234.40
  4. Step 4: Simplify right side
    391,269.60x = 177,118,304,538.24
  5. Step 5: Solve for x
    x = 177,118,304,538.24/391,269.60
  6. Step 6: Final answer
    x = 452,675.86

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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.