Home / 851,791.80-1,175,470.20-489,239.04

Finding the Fourth Proportional to 851,791.80, 1,175,470.20 and 489,239.04

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Solution

The fourth proportional to 851,791.80, 1,175,470.20 and 489,239.04 is: 675,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,791.80 : 1,175,470.20 = 489,239.04 : x
  2. Step 2: Convert to fraction form
    851,791.80/1,175,470.20 = 489,239.04/x
  3. Step 3: Cross multiply
    851,791.80x = 1,175,470.20 × 489,239.04
  4. Step 4: Simplify right side
    851,791.80x = 575,085,912,196.61
  5. Step 5: Solve for x
    x = 575,085,912,196.61/851,791.80
  6. Step 6: Final answer
    x = 675,148.45

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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.