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Finding the Fourth Proportional to 495,399.92, 683,659.80 and 269,045.40

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Solution

The fourth proportional to 495,399.92, 683,659.80 and 269,045.40 is: 371,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,399.92 : 683,659.80 = 269,045.40 : x
  2. Step 2: Convert to fraction form
    495,399.92/683,659.80 = 269,045.40/x
  3. Step 3: Cross multiply
    495,399.92x = 683,659.80 × 269,045.40
  4. Step 4: Simplify right side
    495,399.92x = 183,935,524,354.92
  5. Step 5: Solve for x
    x = 183,935,524,354.92/495,399.92
  6. Step 6: Final answer
    x = 371,286.95

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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.