Home / 1,613,643.20-2,420,205.60-491,451.20

Finding the Fourth Proportional to 1,613,643.20, 2,420,205.60 and 491,451.20

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Solution

The fourth proportional to 1,613,643.20, 2,420,205.60 and 491,451.20 is: 737,097.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,643.20 : 2,420,205.60 = 491,451.20 : x
  2. Step 2: Convert to fraction form
    1,613,643.20/2,420,205.60 = 491,451.20/x
  3. Step 3: Cross multiply
    1,613,643.20x = 2,420,205.60 × 491,451.20
  4. Step 4: Simplify right side
    1,613,643.20x = 1,189,412,946,366.72
  5. Step 5: Solve for x
    x = 1,189,412,946,366.72/1,613,643.20
  6. Step 6: Final answer
    x = 737,097.86

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Double scale
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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.