Home / 1,296,611.20-1,943,264.40-727,991.20

Finding the Fourth Proportional to 1,296,611.20, 1,943,264.40 and 727,991.20

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Solution

The fourth proportional to 1,296,611.20, 1,943,264.40 and 727,991.20 is: 1,091,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,611.20 : 1,943,264.40 = 727,991.20 : x
  2. Step 2: Convert to fraction form
    1,296,611.20/1,943,264.40 = 727,991.20/x
  3. Step 3: Cross multiply
    1,296,611.20x = 1,943,264.40 × 727,991.20
  4. Step 4: Simplify right side
    1,296,611.20x = 1,414,679,382,473.28
  5. Step 5: Solve for x
    x = 1,414,679,382,473.28/1,296,611.20
  6. Step 6: Final answer
    x = 1,091,059.05

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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.