Home / 1,112,426.80-1,668,640.20-270,978.55

Finding the Fourth Proportional to 1,112,426.80, 1,668,640.20 and 270,978.55

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Solution

The fourth proportional to 1,112,426.80, 1,668,640.20 and 270,978.55 is: 406,467.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,426.80 : 1,668,640.20 = 270,978.55 : x
  2. Step 2: Convert to fraction form
    1,112,426.80/1,668,640.20 = 270,978.55/x
  3. Step 3: Cross multiply
    1,112,426.80x = 1,668,640.20 × 270,978.55
  4. Step 4: Simplify right side
    1,112,426.80x = 452,165,701,867.71
  5. Step 5: Solve for x
    x = 452,165,701,867.71/1,112,426.80
  6. Step 6: Final answer
    x = 406,467.83

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Similar ratio
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1.5x scale

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.