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Finding the Fourth Proportional to 552,004.30, 828,006.45 and 315,808.30

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Solution

The fourth proportional to 552,004.30, 828,006.45 and 315,808.30 is: 473,712.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,004.30 : 828,006.45 = 315,808.30 : x
  2. Step 2: Convert to fraction form
    552,004.30/828,006.45 = 315,808.30/x
  3. Step 3: Cross multiply
    552,004.30x = 828,006.45 × 315,808.30
  4. Step 4: Simplify right side
    552,004.30x = 261,491,309,363.54
  5. Step 5: Solve for x
    x = 261,491,309,363.54/552,004.30
  6. Step 6: Final answer
    x = 473,712.45

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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.