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Finding the Fourth Proportional to 520,942.90, 781,673.55 and 296,475.70

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Solution

The fourth proportional to 520,942.90, 781,673.55 and 296,475.70 is: 444,861.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,942.90 : 781,673.55 = 296,475.70 : x
  2. Step 2: Convert to fraction form
    520,942.90/781,673.55 = 296,475.70/x
  3. Step 3: Cross multiply
    520,942.90x = 781,673.55 × 296,475.70
  4. Step 4: Simplify right side
    520,942.90x = 231,747,212,907.74
  5. Step 5: Solve for x
    x = 231,747,212,907.74/520,942.90
  6. Step 6: Final answer
    x = 444,861.06

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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.