Home / 1,055,207.14-1,455,538.89-861,895.78

Finding the Fourth Proportional to 1,055,207.14, 1,455,538.89 and 861,895.78

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Solution

The fourth proportional to 1,055,207.14, 1,455,538.89 and 861,895.78 is: 1,188,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,207.14 : 1,455,538.89 = 861,895.78 : x
  2. Step 2: Convert to fraction form
    1,055,207.14/1,455,538.89 = 861,895.78/x
  3. Step 3: Cross multiply
    1,055,207.14x = 1,455,538.89 × 861,895.78
  4. Step 4: Simplify right side
    1,055,207.14x = 1,254,522,826,916.88
  5. Step 5: Solve for x
    x = 1,254,522,826,916.88/1,055,207.14
  6. Step 6: Final answer
    x = 1,188,887.74

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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.