Home / 915,709.52-1,263,675.16-513,301.52

Finding the Fourth Proportional to 915,709.52, 1,263,675.16 and 513,301.52

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Solution

The fourth proportional to 915,709.52, 1,263,675.16 and 513,301.52 is: 708,353.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,709.52 : 1,263,675.16 = 513,301.52 : x
  2. Step 2: Convert to fraction form
    915,709.52/1,263,675.16 = 513,301.52/x
  3. Step 3: Cross multiply
    915,709.52x = 1,263,675.16 × 513,301.52
  4. Step 4: Simplify right side
    915,709.52x = 648,646,380,414.24
  5. Step 5: Solve for x
    x = 648,646,380,414.24/915,709.52
  6. Step 6: Final answer
    x = 708,353.87

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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.