Home / 861,743.79-1,293,206.36-300,778.29

Finding the Fourth Proportional to 861,743.79, 1,293,206.36 and 300,778.29

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Solution

The fourth proportional to 861,743.79, 1,293,206.36 and 300,778.29 is: 451,373.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,743.79 : 1,293,206.36 = 300,778.29 : x
  2. Step 2: Convert to fraction form
    861,743.79/1,293,206.36 = 300,778.29/x
  3. Step 3: Cross multiply
    861,743.79x = 1,293,206.36 × 300,778.29
  4. Step 4: Simplify right side
    861,743.79x = 388,968,396,074.03
  5. Step 5: Solve for x
    x = 388,968,396,074.03/861,743.79
  6. Step 6: Final answer
    x = 451,373.60

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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.