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Finding the Fourth Proportional to 552,510.78, 828,577.77 and 215,524.86

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Solution

The fourth proportional to 552,510.78, 828,577.77 and 215,524.86 is: 323,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,510.78 : 828,577.77 = 215,524.86 : x
  2. Step 2: Convert to fraction form
    552,510.78/828,577.77 = 215,524.86/x
  3. Step 3: Cross multiply
    552,510.78x = 828,577.77 × 215,524.86
  4. Step 4: Simplify right side
    552,510.78x = 178,579,107,878.36
  5. Step 5: Solve for x
    x = 178,579,107,878.36/552,510.78
  6. Step 6: Final answer
    x = 323,213.80

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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.