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Finding the Fourth Proportional to 552,111.60, 828,282.60 and 315,260.40

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Solution

The fourth proportional to 552,111.60, 828,282.60 and 315,260.40 is: 472,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,111.60 : 828,282.60 = 315,260.40 : x
  2. Step 2: Convert to fraction form
    552,111.60/828,282.60 = 315,260.40/x
  3. Step 3: Cross multiply
    552,111.60x = 828,282.60 × 315,260.40
  4. Step 4: Simplify right side
    552,111.60x = 261,124,703,789.04
  5. Step 5: Solve for x
    x = 261,124,703,789.04/552,111.60
  6. Step 6: Final answer
    x = 472,956.38

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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.