Home / 1,287,494.82-1,776,720.69-714,559.14

Finding the Fourth Proportional to 1,287,494.82, 1,776,720.69 and 714,559.14

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Solution

The fourth proportional to 1,287,494.82, 1,776,720.69 and 714,559.14 is: 986,079.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,494.82 : 1,776,720.69 = 714,559.14 : x
  2. Step 2: Convert to fraction form
    1,287,494.82/1,776,720.69 = 714,559.14/x
  3. Step 3: Cross multiply
    1,287,494.82x = 1,776,720.69 × 714,559.14
  4. Step 4: Simplify right side
    1,287,494.82x = 1,269,572,008,266.61
  5. Step 5: Solve for x
    x = 1,269,572,008,266.61/1,287,494.82
  6. Step 6: Final answer
    x = 986,079.31

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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.