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Finding the Fourth Proportional to 600,643.12, 828,527.12 and 396,694.44

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Solution

The fourth proportional to 600,643.12, 828,527.12 and 396,694.44 is: 547,200.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,643.12 : 828,527.12 = 396,694.44 : x
  2. Step 2: Convert to fraction form
    600,643.12/828,527.12 = 396,694.44/x
  3. Step 3: Cross multiply
    600,643.12x = 828,527.12 × 396,694.44
  4. Step 4: Simplify right side
    600,643.12x = 328,672,101,893.21
  5. Step 5: Solve for x
    x = 328,672,101,893.21/600,643.12
  6. Step 6: Final answer
    x = 547,200.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.