Home / 1,055,206.14-1,455,537.51-861,894.78

Finding the Fourth Proportional to 1,055,206.14, 1,455,537.51 and 861,894.78

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Solution

The fourth proportional to 1,055,206.14, 1,455,537.51 and 861,894.78 is: 1,188,886.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,206.14 : 1,455,537.51 = 861,894.78 : x
  2. Step 2: Convert to fraction form
    1,055,206.14/1,455,537.51 = 861,894.78/x
  3. Step 3: Cross multiply
    1,055,206.14x = 1,455,537.51 × 861,894.78
  4. Step 4: Simplify right side
    1,055,206.14x = 1,254,520,181,963.20
  5. Step 5: Solve for x
    x = 1,254,520,181,963.20/1,055,206.14
  6. Step 6: Final answer
    x = 1,188,886.36

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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.