Home / 574,991.19-861,937.65-215,064.45

Finding the Fourth Proportional to 574,991.19, 861,937.65 and 215,064.45

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Solution

The fourth proportional to 574,991.19, 861,937.65 and 215,064.45 is: 322,391.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,991.19 : 861,937.65 = 215,064.45 : x
  2. Step 2: Convert to fraction form
    574,991.19/861,937.65 = 215,064.45/x
  3. Step 3: Cross multiply
    574,991.19x = 861,937.65 × 215,064.45
  4. Step 4: Simplify right side
    574,991.19x = 185,372,146,631.54
  5. Step 5: Solve for x
    x = 185,372,146,631.54/574,991.19
  6. Step 6: Final answer
    x = 322,391.28

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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.