Home / 1,091,608.16-1,505,397.49-862,712.28

Finding the Fourth Proportional to 1,091,608.16, 1,505,397.49 and 862,712.28

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Solution

The fourth proportional to 1,091,608.16, 1,505,397.49 and 862,712.28 is: 1,189,735.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,608.16 : 1,505,397.49 = 862,712.28 : x
  2. Step 2: Convert to fraction form
    1,091,608.16/1,505,397.49 = 862,712.28/x
  3. Step 3: Cross multiply
    1,091,608.16x = 1,505,397.49 × 862,712.28
  4. Step 4: Simplify right side
    1,091,608.16x = 1,298,724,900,904.18
  5. Step 5: Solve for x
    x = 1,298,724,900,904.18/1,091,608.16
  6. Step 6: Final answer
    x = 1,189,735.43

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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.