Home / 827,738.10-1,239,966.90-729,104.40

Finding the Fourth Proportional to 827,738.10, 1,239,966.90 and 729,104.40

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Solution

The fourth proportional to 827,738.10, 1,239,966.90 and 729,104.40 is: 1,092,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,738.10 : 1,239,966.90 = 729,104.40 : x
  2. Step 2: Convert to fraction form
    827,738.10/1,239,966.90 = 729,104.40/x
  3. Step 3: Cross multiply
    827,738.10x = 1,239,966.90 × 729,104.40
  4. Step 4: Simplify right side
    827,738.10x = 904,065,322,644.36
  5. Step 5: Solve for x
    x = 904,065,322,644.36/827,738.10
  6. Step 6: Final answer
    x = 1,092,211.80

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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.