Home / 1,186,394.31-1,637,254.08-727,761.78

Finding the Fourth Proportional to 1,186,394.31, 1,637,254.08 and 727,761.78

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Solution

The fourth proportional to 1,186,394.31, 1,637,254.08 and 727,761.78 is: 1,004,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,394.31 : 1,637,254.08 = 727,761.78 : x
  2. Step 2: Convert to fraction form
    1,186,394.31/1,637,254.08 = 727,761.78/x
  3. Step 3: Cross multiply
    1,186,394.31x = 1,637,254.08 × 727,761.78
  4. Step 4: Simplify right side
    1,186,394.31x = 1,191,530,943,573.06
  5. Step 5: Solve for x
    x = 1,191,530,943,573.06/1,186,394.31
  6. Step 6: Final answer
    x = 1,004,329.62

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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.