Home / 1,615,115.80-2,422,479.30-668,387.80

Finding the Fourth Proportional to 1,615,115.80, 2,422,479.30 and 668,387.80

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Solution

The fourth proportional to 1,615,115.80, 2,422,479.30 and 668,387.80 is: 1,002,501.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,115.80 : 2,422,479.30 = 668,387.80 : x
  2. Step 2: Convert to fraction form
    1,615,115.80/2,422,479.30 = 668,387.80/x
  3. Step 3: Cross multiply
    1,615,115.80x = 2,422,479.30 × 668,387.80
  4. Step 4: Simplify right side
    1,615,115.80x = 1,619,155,609,872.54
  5. Step 5: Solve for x
    x = 1,619,155,609,872.54/1,615,115.80
  6. Step 6: Final answer
    x = 1,002,501.25

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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.