Home / 828,102.71-1,242,213.14-220,887.63

Finding the Fourth Proportional to 828,102.71, 1,242,213.14 and 220,887.63

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Solution

The fourth proportional to 828,102.71, 1,242,213.14 and 220,887.63 is: 331,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,102.71 : 1,242,213.14 = 220,887.63 : x
  2. Step 2: Convert to fraction form
    828,102.71/1,242,213.14 = 220,887.63/x
  3. Step 3: Cross multiply
    828,102.71x = 1,242,213.14 × 220,887.63
  4. Step 4: Simplify right side
    828,102.71x = 274,389,517,001.68
  5. Step 5: Solve for x
    x = 274,389,517,001.68/828,102.71
  6. Step 6: Final answer
    x = 331,347.20

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Double scale
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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.