Home / 942,719.13-1,300,979.78-513,026.97

Finding the Fourth Proportional to 942,719.13, 1,300,979.78 and 513,026.97

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Solution

The fourth proportional to 942,719.13, 1,300,979.78 and 513,026.97 is: 707,992.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,719.13 : 1,300,979.78 = 513,026.97 : x
  2. Step 2: Convert to fraction form
    942,719.13/1,300,979.78 = 513,026.97/x
  3. Step 3: Cross multiply
    942,719.13x = 1,300,979.78 × 513,026.97
  4. Step 4: Simplify right side
    942,719.13x = 667,437,711,999.53
  5. Step 5: Solve for x
    x = 667,437,711,999.53/942,719.13
  6. Step 6: Final answer
    x = 707,992.12

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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.