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Finding the Fourth Proportional to 552,004.20, 828,006.30 and 172,956.60

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Solution

The fourth proportional to 552,004.20, 828,006.30 and 172,956.60 is: 259,434.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,004.20 : 828,006.30 = 172,956.60 : x
  2. Step 2: Convert to fraction form
    552,004.20/828,006.30 = 172,956.60/x
  3. Step 3: Cross multiply
    552,004.20x = 828,006.30 × 172,956.60
  4. Step 4: Simplify right side
    552,004.20x = 143,209,154,426.58
  5. Step 5: Solve for x
    x = 143,209,154,426.58/552,004.20
  6. Step 6: Final answer
    x = 259,434.90

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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.