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Finding the Fourth Proportional to 552,198.90, 828,298.35 and 485,714.10

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Solution

The fourth proportional to 552,198.90, 828,298.35 and 485,714.10 is: 728,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,198.90 : 828,298.35 = 485,714.10 : x
  2. Step 2: Convert to fraction form
    552,198.90/828,298.35 = 485,714.10/x
  3. Step 3: Cross multiply
    552,198.90x = 828,298.35 × 485,714.10
  4. Step 4: Simplify right side
    552,198.90x = 402,316,187,601.74
  5. Step 5: Solve for x
    x = 402,316,187,601.74/552,198.90
  6. Step 6: Final answer
    x = 728,571.15

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Similar ratio
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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.