Home / 915,317.52-1,263,134.68-512,909.52

Finding the Fourth Proportional to 915,317.52, 1,263,134.68 and 512,909.52

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Solution

The fourth proportional to 915,317.52, 1,263,134.68 and 512,909.52 is: 707,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,317.52 : 1,263,134.68 = 512,909.52 : x
  2. Step 2: Convert to fraction form
    915,317.52/1,263,134.68 = 512,909.52/x
  3. Step 3: Cross multiply
    915,317.52x = 1,263,134.68 × 512,909.52
  4. Step 4: Simplify right side
    915,317.52x = 647,873,802,414.15
  5. Step 5: Solve for x
    x = 647,873,802,414.15/915,317.52
  6. Step 6: Final answer
    x = 707,813.18

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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.