Home / 1,091,607.16-1,505,396.12-862,711.28

Finding the Fourth Proportional to 1,091,607.16, 1,505,396.12 and 862,711.28

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Solution

The fourth proportional to 1,091,607.16, 1,505,396.12 and 862,711.28 is: 1,189,734.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,607.16 : 1,505,396.12 = 862,711.28 : x
  2. Step 2: Convert to fraction form
    1,091,607.16/1,505,396.12 = 862,711.28/x
  3. Step 3: Cross multiply
    1,091,607.16x = 1,505,396.12 × 862,711.28
  4. Step 4: Simplify right side
    1,091,607.16x = 1,298,722,213,042.17
  5. Step 5: Solve for x
    x = 1,298,722,213,042.17/1,091,607.16
  6. Step 6: Final answer
    x = 1,189,734.06

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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.