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Finding the Fourth Proportional to 502,603.79, 693,694.10 and 298,615.45

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Solution

The fourth proportional to 502,603.79, 693,694.10 and 298,615.45 is: 412,149.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,603.79 : 693,694.10 = 298,615.45 : x
  2. Step 2: Convert to fraction form
    502,603.79/693,694.10 = 298,615.45/x
  3. Step 3: Cross multiply
    502,603.79x = 693,694.10 × 298,615.45
  4. Step 4: Simplify right side
    502,603.79x = 207,147,775,833.85
  5. Step 5: Solve for x
    x = 207,147,775,833.85/502,603.79
  6. Step 6: Final answer
    x = 412,149.25

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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.