Home / 572,559.20-858,104.40-319,839.20

Finding the Fourth Proportional to 572,559.20, 858,104.40 and 319,839.20

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Solution

The fourth proportional to 572,559.20, 858,104.40 and 319,839.20 is: 479,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,559.20 : 858,104.40 = 319,839.20 : x
  2. Step 2: Convert to fraction form
    572,559.20/858,104.40 = 319,839.20/x
  3. Step 3: Cross multiply
    572,559.20x = 858,104.40 × 319,839.20
  4. Step 4: Simplify right side
    572,559.20x = 274,455,424,812.48
  5. Step 5: Solve for x
    x = 274,455,424,812.48/572,559.20
  6. Step 6: Final answer
    x = 479,348.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.