Home / 828,103.46-1,242,214.27-220,888.38

Finding the Fourth Proportional to 828,103.46, 1,242,214.27 and 220,888.38

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Solution

The fourth proportional to 828,103.46, 1,242,214.27 and 220,888.38 is: 331,348.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,103.46 : 1,242,214.27 = 220,888.38 : x
  2. Step 2: Convert to fraction form
    828,103.46/1,242,214.27 = 220,888.38/x
  3. Step 3: Cross multiply
    828,103.46x = 1,242,214.27 × 220,888.38
  4. Step 4: Simplify right side
    828,103.46x = 274,390,697,713.18
  5. Step 5: Solve for x
    x = 274,390,697,713.18/828,103.46
  6. Step 6: Final answer
    x = 331,348.33

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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.