Home / 884,986.78-1,221,279.51-482,578.78

Finding the Fourth Proportional to 884,986.78, 1,221,279.51 and 482,578.78

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Solution

The fourth proportional to 884,986.78, 1,221,279.51 and 482,578.78 is: 665,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,986.78 : 1,221,279.51 = 482,578.78 : x
  2. Step 2: Convert to fraction form
    884,986.78/1,221,279.51 = 482,578.78/x
  3. Step 3: Cross multiply
    884,986.78x = 1,221,279.51 × 482,578.78
  4. Step 4: Simplify right side
    884,986.78x = 589,363,575,974.80
  5. Step 5: Solve for x
    x = 589,363,575,974.80/884,986.78
  6. Step 6: Final answer
    x = 665,957.49

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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.