Home / 1,427,211.20-1,969,642.50-942,926.78

Finding the Fourth Proportional to 1,427,211.20, 1,969,642.50 and 942,926.78

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Solution

The fourth proportional to 1,427,211.20, 1,969,642.50 and 942,926.78 is: 1,301,299.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,211.20 : 1,969,642.50 = 942,926.78 : x
  2. Step 2: Convert to fraction form
    1,427,211.20/1,969,642.50 = 942,926.78/x
  3. Step 3: Cross multiply
    1,427,211.20x = 1,969,642.50 × 942,926.78
  4. Step 4: Simplify right side
    1,427,211.20x = 1,857,228,660,276.15
  5. Step 5: Solve for x
    x = 1,857,228,660,276.15/1,427,211.20
  6. Step 6: Final answer
    x = 1,301,299.11

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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.