Home / 1,319,517.40-1,976,943.30-1,170,218.20

Finding the Fourth Proportional to 1,319,517.40, 1,976,943.30 and 1,170,218.20

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Solution

The fourth proportional to 1,319,517.40, 1,976,943.30 and 1,170,218.20 is: 1,753,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,517.40 : 1,976,943.30 = 1,170,218.20 : x
  2. Step 2: Convert to fraction form
    1,319,517.40/1,976,943.30 = 1,170,218.20/x
  3. Step 3: Cross multiply
    1,319,517.40x = 1,976,943.30 × 1,170,218.20
  4. Step 4: Simplify right side
    1,319,517.40x = 2,313,455,030,028.06
  5. Step 5: Solve for x
    x = 2,313,455,030,028.06/1,319,517.40
  6. Step 6: Final answer
    x = 1,753,258.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.