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Finding the Fourth Proportional to 637,494.71, 879,667.90 and 361,834.29

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Solution

The fourth proportional to 637,494.71, 879,667.90 and 361,834.29 is: 499,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,494.71 : 879,667.90 = 361,834.29 : x
  2. Step 2: Convert to fraction form
    637,494.71/879,667.90 = 361,834.29/x
  3. Step 3: Cross multiply
    637,494.71x = 879,667.90 × 361,834.29
  4. Step 4: Simplify right side
    637,494.71x = 318,294,009,127.71
  5. Step 5: Solve for x
    x = 318,294,009,127.71/637,494.71
  6. Step 6: Final answer
    x = 499,288.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.