Home / 1,287,435.16-1,776,700.92-743,560.84

Finding the Fourth Proportional to 1,287,435.16, 1,776,700.92 and 743,560.84

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Solution

The fourth proportional to 1,287,435.16, 1,776,700.92 and 743,560.84 is: 1,026,137.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,435.16 : 1,776,700.92 = 743,560.84 : x
  2. Step 2: Convert to fraction form
    1,287,435.16/1,776,700.92 = 743,560.84/x
  3. Step 3: Cross multiply
    1,287,435.16x = 1,776,700.92 × 743,560.84
  4. Step 4: Simplify right side
    1,287,435.16x = 1,321,085,228,503.97
  5. Step 5: Solve for x
    x = 1,321,085,228,503.97/1,287,435.16
  6. Step 6: Final answer
    x = 1,026,137.29

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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.