Home / 1,318,040.55-1,818,375.90-827,721.63

Finding the Fourth Proportional to 1,318,040.55, 1,818,375.90 and 827,721.63

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Solution

The fourth proportional to 1,318,040.55, 1,818,375.90 and 827,721.63 is: 1,141,929.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,040.55 : 1,818,375.90 = 827,721.63 : x
  2. Step 2: Convert to fraction form
    1,318,040.55/1,818,375.90 = 827,721.63/x
  3. Step 3: Cross multiply
    1,318,040.55x = 1,818,375.90 × 827,721.63
  4. Step 4: Simplify right side
    1,318,040.55x = 1,505,109,063,900.72
  5. Step 5: Solve for x
    x = 1,505,109,063,900.72/1,318,040.55
  6. Step 6: Final answer
    x = 1,141,929.26

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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.