Home / 1,287,040.17-1,776,115.70-714,078.97

Finding the Fourth Proportional to 1,287,040.17, 1,776,115.70 and 714,078.97

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Solution

The fourth proportional to 1,287,040.17, 1,776,115.70 and 714,078.97 is: 985,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,040.17 : 1,776,115.70 = 714,078.97 : x
  2. Step 2: Convert to fraction form
    1,287,040.17/1,776,115.70 = 714,078.97/x
  3. Step 3: Cross multiply
    1,287,040.17x = 1,776,115.70 × 714,078.97
  4. Step 4: Simplify right side
    1,287,040.17x = 1,268,286,870,984.37
  5. Step 5: Solve for x
    x = 1,268,286,870,984.37/1,287,040.17
  6. Step 6: Final answer
    x = 985,429.13

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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.