Home / 828,101.46-1,242,211.27-220,886.38

Finding the Fourth Proportional to 828,101.46, 1,242,211.27 and 220,886.38

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Solution

The fourth proportional to 828,101.46, 1,242,211.27 and 220,886.38 is: 331,345.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,101.46 : 1,242,211.27 = 220,886.38 : x
  2. Step 2: Convert to fraction form
    828,101.46/1,242,211.27 = 220,886.38/x
  3. Step 3: Cross multiply
    828,101.46x = 1,242,211.27 × 220,886.38
  4. Step 4: Simplify right side
    828,101.46x = 274,387,550,625.50
  5. Step 5: Solve for x
    x = 274,387,550,625.50/828,101.46
  6. Step 6: Final answer
    x = 331,345.33

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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.