Home / 715,075.13-986,559.25-409,040.02

Finding the Fourth Proportional to 715,075.13, 986,559.25 and 409,040.02

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Solution

The fourth proportional to 715,075.13, 986,559.25 and 409,040.02 is: 564,335.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,075.13 : 986,559.25 = 409,040.02 : x
  2. Step 2: Convert to fraction form
    715,075.13/986,559.25 = 409,040.02/x
  3. Step 3: Cross multiply
    715,075.13x = 986,559.25 × 409,040.02
  4. Step 4: Simplify right side
    715,075.13x = 403,542,215,351.19
  5. Step 5: Solve for x
    x = 403,542,215,351.19/715,075.13
  6. Step 6: Final answer
    x = 564,335.41

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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.