Home / 915,723.29-1,263,698.15-513,315.29

Finding the Fourth Proportional to 915,723.29, 1,263,698.15 and 513,315.29

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Solution

The fourth proportional to 915,723.29, 1,263,698.15 and 513,315.29 is: 708,375.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,723.29 : 1,263,698.15 = 513,315.29 : x
  2. Step 2: Convert to fraction form
    915,723.29/1,263,698.15 = 513,315.29/x
  3. Step 3: Cross multiply
    915,723.29x = 1,263,698.15 × 513,315.29
  4. Step 4: Simplify right side
    915,723.29x = 648,675,582,932.38
  5. Step 5: Solve for x
    x = 648,675,582,932.38/915,723.29
  6. Step 6: Final answer
    x = 708,375.10

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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.