Home / 1,317,648.78-1,818,357.39-714,036.78

Finding the Fourth Proportional to 1,317,648.78, 1,818,357.39 and 714,036.78

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Solution

The fourth proportional to 1,317,648.78, 1,818,357.39 and 714,036.78 is: 985,371.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,648.78 : 1,818,357.39 = 714,036.78 : x
  2. Step 2: Convert to fraction form
    1,317,648.78/1,818,357.39 = 714,036.78/x
  3. Step 3: Cross multiply
    1,317,648.78x = 1,818,357.39 × 714,036.78
  4. Step 4: Simplify right side
    1,317,648.78x = 1,298,374,055,644.80
  5. Step 5: Solve for x
    x = 1,298,374,055,644.80/1,317,648.78
  6. Step 6: Final answer
    x = 985,371.88

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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.