Home / 853,819.65-1,280,950.80-454,131.63

Finding the Fourth Proportional to 853,819.65, 1,280,950.80 and 454,131.63

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Solution

The fourth proportional to 853,819.65, 1,280,950.80 and 454,131.63 is: 681,315.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,819.65 : 1,280,950.80 = 454,131.63 : x
  2. Step 2: Convert to fraction form
    853,819.65/1,280,950.80 = 454,131.63/x
  3. Step 3: Cross multiply
    853,819.65x = 1,280,950.80 × 454,131.63
  4. Step 4: Simplify right side
    853,819.65x = 581,720,274,753.80
  5. Step 5: Solve for x
    x = 581,720,274,753.80/853,819.65
  6. Step 6: Final answer
    x = 681,315.16

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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.