Home / 708,119.33-1,062,621.87-287,395.20

Finding the Fourth Proportional to 708,119.33, 1,062,621.87 and 287,395.20

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Solution

The fourth proportional to 708,119.33, 1,062,621.87 and 287,395.20 is: 431,272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,119.33 : 1,062,621.87 = 287,395.20 : x
  2. Step 2: Convert to fraction form
    708,119.33/1,062,621.87 = 287,395.20/x
  3. Step 3: Cross multiply
    708,119.33x = 1,062,621.87 × 287,395.20
  4. Step 4: Simplify right side
    708,119.33x = 305,392,424,853.02
  5. Step 5: Solve for x
    x = 305,392,424,853.02/708,119.33
  6. Step 6: Final answer
    x = 431,272.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.