Home / 880,191.03-1,320,286.56-480,613.83

Finding the Fourth Proportional to 880,191.03, 1,320,286.56 and 480,613.83

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Solution

The fourth proportional to 880,191.03, 1,320,286.56 and 480,613.83 is: 720,920.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,191.03 : 1,320,286.56 = 480,613.83 : x
  2. Step 2: Convert to fraction form
    880,191.03/1,320,286.56 = 480,613.83/x
  3. Step 3: Cross multiply
    880,191.03x = 1,320,286.56 × 480,613.83
  4. Step 4: Simplify right side
    880,191.03x = 634,547,980,299.13
  5. Step 5: Solve for x
    x = 634,547,980,299.13/880,191.03
  6. Step 6: Final answer
    x = 720,920.75

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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.