Home / 715,057.27-1,072,585.91-265,891.21

Finding the Fourth Proportional to 715,057.27, 1,072,585.91 and 265,891.21

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Solution

The fourth proportional to 715,057.27, 1,072,585.91 and 265,891.21 is: 398,836.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,057.27 : 1,072,585.91 = 265,891.21 : x
  2. Step 2: Convert to fraction form
    715,057.27/1,072,585.91 = 265,891.21/x
  3. Step 3: Cross multiply
    715,057.27x = 1,072,585.91 × 265,891.21
  4. Step 4: Simplify right side
    715,057.27x = 285,191,163,422.11
  5. Step 5: Solve for x
    x = 285,191,163,422.11/715,057.27
  6. Step 6: Final answer
    x = 398,836.82

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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.