Home / 1,244,963.21-1,718,053.10-721,775.79

Finding the Fourth Proportional to 1,244,963.21, 1,718,053.10 and 721,775.79

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Solution

The fourth proportional to 1,244,963.21, 1,718,053.10 and 721,775.79 is: 996,052.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,963.21 : 1,718,053.10 = 721,775.79 : x
  2. Step 2: Convert to fraction form
    1,244,963.21/1,718,053.10 = 721,775.79/x
  3. Step 3: Cross multiply
    1,244,963.21x = 1,718,053.10 × 721,775.79
  4. Step 4: Simplify right side
    1,244,963.21x = 1,240,049,129,905.57
  5. Step 5: Solve for x
    x = 1,240,049,129,905.57/1,244,963.21
  6. Step 6: Final answer
    x = 996,052.84

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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.