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Finding the Fourth Proportional to 643,523.46, 965,123.24 and 264,549.87

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Solution

The fourth proportional to 643,523.46, 965,123.24 and 264,549.87 is: 396,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,523.46 : 965,123.24 = 264,549.87 : x
  2. Step 2: Convert to fraction form
    643,523.46/965,123.24 = 264,549.87/x
  3. Step 3: Cross multiply
    643,523.46x = 965,123.24 × 264,549.87
  4. Step 4: Simplify right side
    643,523.46x = 255,323,226,353.23
  5. Step 5: Solve for x
    x = 255,323,226,353.23/643,523.46
  6. Step 6: Final answer
    x = 396,758.23

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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.