Home / 572,721.80-790,418.75-327,729.20

Finding the Fourth Proportional to 572,721.80, 790,418.75 and 327,729.20

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Solution

The fourth proportional to 572,721.80, 790,418.75 and 327,729.20 is: 452,302.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,721.80 : 790,418.75 = 327,729.20 : x
  2. Step 2: Convert to fraction form
    572,721.80/790,418.75 = 327,729.20/x
  3. Step 3: Cross multiply
    572,721.80x = 790,418.75 × 327,729.20
  4. Step 4: Simplify right side
    572,721.80x = 259,043,304,602.50
  5. Step 5: Solve for x
    x = 259,043,304,602.50/572,721.80
  6. Step 6: Final answer
    x = 452,302.16

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1.5x scale

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.