Home / 1,287,606.80-1,777,117.28-743,644.82

Finding the Fourth Proportional to 1,287,606.80, 1,777,117.28 and 743,644.82

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Solution

The fourth proportional to 1,287,606.80, 1,777,117.28 and 743,644.82 is: 1,026,356.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,606.80 : 1,777,117.28 = 743,644.82 : x
  2. Step 2: Convert to fraction form
    1,287,606.80/1,777,117.28 = 743,644.82/x
  3. Step 3: Cross multiply
    1,287,606.80x = 1,777,117.28 × 743,644.82
  4. Step 4: Simplify right side
    1,287,606.80x = 1,321,544,059,804.49
  5. Step 5: Solve for x
    x = 1,321,544,059,804.49/1,287,606.80
  6. Step 6: Final answer
    x = 1,026,356.85

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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.