Home / 699,422.10-1,049,133.15-644,309.70

Finding the Fourth Proportional to 699,422.10, 1,049,133.15 and 644,309.70

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Solution

The fourth proportional to 699,422.10, 1,049,133.15 and 644,309.70 is: 966,464.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,422.10 : 1,049,133.15 = 644,309.70 : x
  2. Step 2: Convert to fraction form
    699,422.10/1,049,133.15 = 644,309.70/x
  3. Step 3: Cross multiply
    699,422.10x = 1,049,133.15 × 644,309.70
  4. Step 4: Simplify right side
    699,422.10x = 675,966,665,136.56
  5. Step 5: Solve for x
    x = 675,966,665,136.56/699,422.10
  6. Step 6: Final answer
    x = 966,464.55

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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.