Home / 766,481.16-1,149,668.28-286,617.72

Finding the Fourth Proportional to 766,481.16, 1,149,668.28 and 286,617.72

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Solution

The fourth proportional to 766,481.16, 1,149,668.28 and 286,617.72 is: 429,906.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,481.16 : 1,149,668.28 = 286,617.72 : x
  2. Step 2: Convert to fraction form
    766,481.16/1,149,668.28 = 286,617.72/x
  3. Step 3: Cross multiply
    766,481.16x = 1,149,668.28 × 286,617.72
  4. Step 4: Simplify right side
    766,481.16x = 329,515,301,169.92
  5. Step 5: Solve for x
    x = 329,515,301,169.92/766,481.16
  6. Step 6: Final answer
    x = 429,906.59

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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.