Home / 783,109.22-1,080,690.66-443,577.47

Finding the Fourth Proportional to 783,109.22, 1,080,690.66 and 443,577.47

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Solution

The fourth proportional to 783,109.22, 1,080,690.66 and 443,577.47 is: 612,136.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,109.22 : 1,080,690.66 = 443,577.47 : x
  2. Step 2: Convert to fraction form
    783,109.22/1,080,690.66 = 443,577.47/x
  3. Step 3: Cross multiply
    783,109.22x = 1,080,690.66 × 443,577.47
  4. Step 4: Simplify right side
    783,109.22x = 479,370,023,411.98
  5. Step 5: Solve for x
    x = 479,370,023,411.98/783,109.22
  6. Step 6: Final answer
    x = 612,136.87

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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.