Home / 1,296,990.54-1,789,877.25-813,576.06

Finding the Fourth Proportional to 1,296,990.54, 1,789,877.25 and 813,576.06

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Solution

The fourth proportional to 1,296,990.54, 1,789,877.25 and 813,576.06 is: 1,122,753.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,990.54 : 1,789,877.25 = 813,576.06 : x
  2. Step 2: Convert to fraction form
    1,296,990.54/1,789,877.25 = 813,576.06/x
  3. Step 3: Cross multiply
    1,296,990.54x = 1,789,877.25 × 813,576.06
  4. Step 4: Simplify right side
    1,296,990.54x = 1,456,201,280,938.64
  5. Step 5: Solve for x
    x = 1,456,201,280,938.64/1,296,990.54
  6. Step 6: Final answer
    x = 1,122,753.97

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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.