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Finding the Fourth Proportional to 510,565.44, 704,531.61 and 281,119.98

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Solution

The fourth proportional to 510,565.44, 704,531.61 and 281,119.98 is: 387,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,565.44 : 704,531.61 = 281,119.98 : x
  2. Step 2: Convert to fraction form
    510,565.44/704,531.61 = 281,119.98/x
  3. Step 3: Cross multiply
    510,565.44x = 704,531.61 × 281,119.98
  4. Step 4: Simplify right side
    510,565.44x = 198,057,912,112.57
  5. Step 5: Solve for x
    x = 198,057,912,112.57/510,565.44
  6. Step 6: Final answer
    x = 387,918.76

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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.