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Finding the Fourth Proportional to 552,647.70, 828,971.55 and 384,686.10

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Solution

The fourth proportional to 552,647.70, 828,971.55 and 384,686.10 is: 577,029.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,647.70 : 828,971.55 = 384,686.10 : x
  2. Step 2: Convert to fraction form
    552,647.70/828,971.55 = 384,686.10/x
  3. Step 3: Cross multiply
    552,647.70x = 828,971.55 × 384,686.10
  4. Step 4: Simplify right side
    552,647.70x = 318,893,832,580.46
  5. Step 5: Solve for x
    x = 318,893,832,580.46/552,647.70
  6. Step 6: Final answer
    x = 577,029.15

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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.