Home / 1,342,680.40-1,852,844.34-769,321.84

Finding the Fourth Proportional to 1,342,680.40, 1,852,844.34 and 769,321.84

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Solution

The fourth proportional to 1,342,680.40, 1,852,844.34 and 769,321.84 is: 1,061,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,680.40 : 1,852,844.34 = 769,321.84 : x
  2. Step 2: Convert to fraction form
    1,342,680.40/1,852,844.34 = 769,321.84/x
  3. Step 3: Cross multiply
    1,342,680.40x = 1,852,844.34 × 769,321.84
  4. Step 4: Simplify right side
    1,342,680.40x = 1,425,433,616,882.39
  5. Step 5: Solve for x
    x = 1,425,433,616,882.39/1,342,680.40
  6. Step 6: Final answer
    x = 1,061,632.85

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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.