Home / 1,263,418.31-1,743,521.81-690,458.73

Finding the Fourth Proportional to 1,263,418.31, 1,743,521.81 and 690,458.73

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Solution

The fourth proportional to 1,263,418.31, 1,743,521.81 and 690,458.73 is: 952,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,418.31 : 1,743,521.81 = 690,458.73 : x
  2. Step 2: Convert to fraction form
    1,263,418.31/1,743,521.81 = 690,458.73/x
  3. Step 3: Cross multiply
    1,263,418.31x = 1,743,521.81 × 690,458.73
  4. Step 4: Simplify right side
    1,263,418.31x = 1,203,829,851,207.61
  5. Step 5: Solve for x
    x = 1,203,829,851,207.61/1,263,418.31
  6. Step 6: Final answer
    x = 952,835.53

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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.