Home / 1,287,427.16-1,776,689.88-743,552.84

Finding the Fourth Proportional to 1,287,427.16, 1,776,689.88 and 743,552.84

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Solution

The fourth proportional to 1,287,427.16, 1,776,689.88 and 743,552.84 is: 1,026,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,427.16 : 1,776,689.88 = 743,552.84 : x
  2. Step 2: Convert to fraction form
    1,287,427.16/1,776,689.88 = 743,552.84/x
  3. Step 3: Cross multiply
    1,287,427.16x = 1,776,689.88 × 743,552.84
  4. Step 4: Simplify right side
    1,287,427.16x = 1,321,062,806,073.26
  5. Step 5: Solve for x
    x = 1,321,062,806,073.26/1,287,427.16
  6. Step 6: Final answer
    x = 1,026,126.25

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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.