Home / 641,217.20-960,513.60-325,851.80

Finding the Fourth Proportional to 641,217.20, 960,513.60 and 325,851.80

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Solution

The fourth proportional to 641,217.20, 960,513.60 and 325,851.80 is: 488,110.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,217.20 : 960,513.60 = 325,851.80 : x
  2. Step 2: Convert to fraction form
    641,217.20/960,513.60 = 325,851.80/x
  3. Step 3: Cross multiply
    641,217.20x = 960,513.60 × 325,851.80
  4. Step 4: Simplify right side
    641,217.20x = 312,985,085,484.48
  5. Step 5: Solve for x
    x = 312,985,085,484.48/641,217.20
  6. Step 6: Final answer
    x = 488,110.87

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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.