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Finding the Fourth Proportional to 654,876.63, 903,728.45 and 368,396.93

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Solution

The fourth proportional to 654,876.63, 903,728.45 and 368,396.93 is: 508,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,876.63 : 903,728.45 = 368,396.93 : x
  2. Step 2: Convert to fraction form
    654,876.63/903,728.45 = 368,396.93/x
  3. Step 3: Cross multiply
    654,876.63x = 903,728.45 × 368,396.93
  4. Step 4: Simplify right side
    654,876.63x = 332,930,789,713.97
  5. Step 5: Solve for x
    x = 332,930,789,713.97/654,876.63
  6. Step 6: Final answer
    x = 508,387.04

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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.