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Finding the Fourth Proportional to 552,974.69, 828,133.43 and 315,597.71

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Solution

The fourth proportional to 552,974.69, 828,133.43 and 315,597.71 is: 472,638.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,974.69 : 828,133.43 = 315,597.71 : x
  2. Step 2: Convert to fraction form
    552,974.69/828,133.43 = 315,597.71/x
  3. Step 3: Cross multiply
    552,974.69x = 828,133.43 × 315,597.71
  4. Step 4: Simplify right side
    552,974.69x = 261,357,008,363.79
  5. Step 5: Solve for x
    x = 261,357,008,363.79/552,974.69
  6. Step 6: Final answer
    x = 472,638.29

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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.