Home / 810,002.20-1,215,003.30-241,382.20

Finding the Fourth Proportional to 810,002.20, 1,215,003.30 and 241,382.20

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Solution

The fourth proportional to 810,002.20, 1,215,003.30 and 241,382.20 is: 362,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,002.20 : 1,215,003.30 = 241,382.20 : x
  2. Step 2: Convert to fraction form
    810,002.20/1,215,003.30 = 241,382.20/x
  3. Step 3: Cross multiply
    810,002.20x = 1,215,003.30 × 241,382.20
  4. Step 4: Simplify right side
    810,002.20x = 293,280,169,561.26
  5. Step 5: Solve for x
    x = 293,280,169,561.26/810,002.20
  6. Step 6: Final answer
    x = 362,073.30

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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.