Home / 815,722.85-1,125,832.37-679,541.10

Finding the Fourth Proportional to 815,722.85, 1,125,832.37 and 679,541.10

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Solution

The fourth proportional to 815,722.85, 1,125,832.37 and 679,541.10 is: 937,879.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,722.85 : 1,125,832.37 = 679,541.10 : x
  2. Step 2: Convert to fraction form
    815,722.85/1,125,832.37 = 679,541.10/x
  3. Step 3: Cross multiply
    815,722.85x = 1,125,832.37 × 679,541.10
  4. Step 4: Simplify right side
    815,722.85x = 765,049,359,505.83
  5. Step 5: Solve for x
    x = 765,049,359,505.83/815,722.85
  6. Step 6: Final answer
    x = 937,879.03

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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.