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Finding the Fourth Proportional to 501,755.85, 692,370.95 and 283,988.97

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Solution

The fourth proportional to 501,755.85, 692,370.95 and 283,988.97 is: 391,875.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,755.85 : 692,370.95 = 283,988.97 : x
  2. Step 2: Convert to fraction form
    501,755.85/692,370.95 = 283,988.97/x
  3. Step 3: Cross multiply
    501,755.85x = 692,370.95 × 283,988.97
  4. Step 4: Simplify right side
    501,755.85x = 196,625,711,528.48
  5. Step 5: Solve for x
    x = 196,625,711,528.48/501,755.85
  6. Step 6: Final answer
    x = 391,875.27

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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.