Home / 886,684.48-1,330,213.77-287,599.12

Finding the Fourth Proportional to 886,684.48, 1,330,213.77 and 287,599.12

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Solution

The fourth proportional to 886,684.48, 1,330,213.77 and 287,599.12 is: 431,459.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,684.48 : 1,330,213.77 = 287,599.12 : x
  2. Step 2: Convert to fraction form
    886,684.48/1,330,213.77 = 287,599.12/x
  3. Step 3: Cross multiply
    886,684.48x = 1,330,213.77 × 287,599.12
  4. Step 4: Simplify right side
    886,684.48x = 382,568,309,663.88
  5. Step 5: Solve for x
    x = 382,568,309,663.88/886,684.48
  6. Step 6: Final answer
    x = 431,459.35

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Double scale
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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.