Home / 1,766,120.88-2,649,576.38-644,189.88

Finding the Fourth Proportional to 1,766,120.88, 2,649,576.38 and 644,189.88

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Solution

The fourth proportional to 1,766,120.88, 2,649,576.38 and 644,189.88 is: 966,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766,120.88 : 2,649,576.38 = 644,189.88 : x
  2. Step 2: Convert to fraction form
    1,766,120.88/2,649,576.38 = 644,189.88/x
  3. Step 3: Cross multiply
    1,766,120.88x = 2,649,576.38 × 644,189.88
  4. Step 4: Simplify right side
    1,766,120.88x = 1,706,830,290,283.03
  5. Step 5: Solve for x
    x = 1,706,830,290,283.03/1,766,120.88
  6. Step 6: Final answer
    x = 966,428.92

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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.