Home / 726,718.50-1,001,832.18-511,189.62

Finding the Fourth Proportional to 726,718.50, 1,001,832.18 and 511,189.62

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Solution

The fourth proportional to 726,718.50, 1,001,832.18 and 511,189.62 is: 704,710.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,718.50 : 1,001,832.18 = 511,189.62 : x
  2. Step 2: Convert to fraction form
    726,718.50/1,001,832.18 = 511,189.62/x
  3. Step 3: Cross multiply
    726,718.50x = 1,001,832.18 × 511,189.62
  4. Step 4: Simplify right side
    726,718.50x = 512,126,211,397.97
  5. Step 5: Solve for x
    x = 512,126,211,397.97/726,718.50
  6. Step 6: Final answer
    x = 704,710.57

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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.