Home / 766,371.18-1,057,512.82-471,974.32

Finding the Fourth Proportional to 766,371.18, 1,057,512.82 and 471,974.32

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Solution

The fourth proportional to 766,371.18, 1,057,512.82 and 471,974.32 is: 651,275.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,371.18 : 1,057,512.82 = 471,974.32 : x
  2. Step 2: Convert to fraction form
    766,371.18/1,057,512.82 = 471,974.32/x
  3. Step 3: Cross multiply
    766,371.18x = 1,057,512.82 × 471,974.32
  4. Step 4: Simplify right side
    766,371.18x = 499,118,894,110.78
  5. Step 5: Solve for x
    x = 499,118,894,110.78/766,371.18
  6. Step 6: Final answer
    x = 651,275.66

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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.