Home / 851,790.80-1,175,468.82-489,238.04

Finding the Fourth Proportional to 851,790.80, 1,175,468.82 and 489,238.04

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Solution

The fourth proportional to 851,790.80, 1,175,468.82 and 489,238.04 is: 675,147.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,790.80 : 1,175,468.82 = 489,238.04 : x
  2. Step 2: Convert to fraction form
    851,790.80/1,175,468.82 = 489,238.04/x
  3. Step 3: Cross multiply
    851,790.80x = 1,175,468.82 × 489,238.04
  4. Step 4: Simplify right side
    851,790.80x = 575,084,061,577.91
  5. Step 5: Solve for x
    x = 575,084,061,577.91/851,790.80
  6. Step 6: Final answer
    x = 675,147.07

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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.