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Finding the Fourth Proportional to 447,885.90, 670,429.17 and 342,002.70

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Solution

The fourth proportional to 447,885.90, 670,429.17 and 342,002.70 is: 511,935.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,885.90 : 670,429.17 = 342,002.70 : x
  2. Step 2: Convert to fraction form
    447,885.90/670,429.17 = 342,002.70/x
  3. Step 3: Cross multiply
    447,885.90x = 670,429.17 × 342,002.70
  4. Step 4: Simplify right side
    447,885.90x = 229,288,586,298.76
  5. Step 5: Solve for x
    x = 229,288,586,298.76/447,885.90
  6. Step 6: Final answer
    x = 511,935.26

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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.