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Finding the Fourth Proportional to 552,406.80, 828,610.20 and 342,454.80

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Solution

The fourth proportional to 552,406.80, 828,610.20 and 342,454.80 is: 513,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,406.80 : 828,610.20 = 342,454.80 : x
  2. Step 2: Convert to fraction form
    552,406.80/828,610.20 = 342,454.80/x
  3. Step 3: Cross multiply
    552,406.80x = 828,610.20 × 342,454.80
  4. Step 4: Simplify right side
    552,406.80x = 283,761,540,318.96
  5. Step 5: Solve for x
    x = 283,761,540,318.96/552,406.80
  6. Step 6: Final answer
    x = 513,682.20

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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.