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Finding the Fourth Proportional to 503,648.28, 694,158.42 and 438,712.62

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Solution

The fourth proportional to 503,648.28, 694,158.42 and 438,712.62 is: 604,660.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,648.28 : 694,158.42 = 438,712.62 : x
  2. Step 2: Convert to fraction form
    503,648.28/694,158.42 = 438,712.62/x
  3. Step 3: Cross multiply
    503,648.28x = 694,158.42 × 438,712.62
  4. Step 4: Simplify right side
    503,648.28x = 304,536,059,133.26
  5. Step 5: Solve for x
    x = 304,536,059,133.26/503,648.28
  6. Step 6: Final answer
    x = 604,660.18

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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.