Home / 969,539.22-1,337,280.03-840,243.78

Finding the Fourth Proportional to 969,539.22, 1,337,280.03 and 840,243.78

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Solution

The fourth proportional to 969,539.22, 1,337,280.03 and 840,243.78 is: 1,158,943.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,539.22 : 1,337,280.03 = 840,243.78 : x
  2. Step 2: Convert to fraction form
    969,539.22/1,337,280.03 = 840,243.78/x
  3. Step 3: Cross multiply
    969,539.22x = 1,337,280.03 × 840,243.78
  4. Step 4: Simplify right side
    969,539.22x = 1,123,641,227,325.71
  5. Step 5: Solve for x
    x = 1,123,641,227,325.71/969,539.22
  6. Step 6: Final answer
    x = 1,158,943.55

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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.