Home / 927,221.66-1,391,032.28-287,512.52

Finding the Fourth Proportional to 927,221.66, 1,391,032.28 and 287,512.52

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Solution

The fourth proportional to 927,221.66, 1,391,032.28 and 287,512.52 is: 431,330.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,221.66 : 1,391,032.28 = 287,512.52 : x
  2. Step 2: Convert to fraction form
    927,221.66/1,391,032.28 = 287,512.52/x
  3. Step 3: Cross multiply
    927,221.66x = 1,391,032.28 × 287,512.52
  4. Step 4: Simplify right side
    927,221.66x = 399,939,196,224.15
  5. Step 5: Solve for x
    x = 399,939,196,224.15/927,221.66
  6. Step 6: Final answer
    x = 431,330.73

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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.