Home / 794,143.20-1,191,214.80-320,584.80

Finding the Fourth Proportional to 794,143.20, 1,191,214.80 and 320,584.80

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Solution

The fourth proportional to 794,143.20, 1,191,214.80 and 320,584.80 is: 480,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    794,143.20 : 1,191,214.80 = 320,584.80 : x
  2. Step 2: Convert to fraction form
    794,143.20/1,191,214.80 = 320,584.80/x
  3. Step 3: Cross multiply
    794,143.20x = 1,191,214.80 × 320,584.80
  4. Step 4: Simplify right side
    794,143.20x = 381,885,358,415.04
  5. Step 5: Solve for x
    x = 381,885,358,415.04/794,143.20
  6. Step 6: Final answer
    x = 480,877.20

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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.