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Finding the Fourth Proportional to 575,086.70, 861,982.05 and 275,710.70

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Solution

The fourth proportional to 575,086.70, 861,982.05 and 275,710.70 is: 413,255.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,086.70 : 861,982.05 = 275,710.70 : x
  2. Step 2: Convert to fraction form
    575,086.70/861,982.05 = 275,710.70/x
  3. Step 3: Cross multiply
    575,086.70x = 861,982.05 × 275,710.70
  4. Step 4: Simplify right side
    575,086.70x = 237,657,674,392.94
  5. Step 5: Solve for x
    x = 237,657,674,392.94/575,086.70
  6. Step 6: Final answer
    x = 413,255.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.