Home / 861,856.69-1,292,785.03-270,880.69

Finding the Fourth Proportional to 861,856.69, 1,292,785.03 and 270,880.69

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Solution

The fourth proportional to 861,856.69, 1,292,785.03 and 270,880.69 is: 406,321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,856.69 : 1,292,785.03 = 270,880.69 : x
  2. Step 2: Convert to fraction form
    861,856.69/1,292,785.03 = 270,880.69/x
  3. Step 3: Cross multiply
    861,856.69x = 1,292,785.03 × 270,880.69
  4. Step 4: Simplify right side
    861,856.69x = 350,190,500,948.07
  5. Step 5: Solve for x
    x = 350,190,500,948.07/861,856.69
  6. Step 6: Final answer
    x = 406,321.03

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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.