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Finding the Fourth Proportional to 548,841.30, 823,780.35 and 338,889.30

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Solution

The fourth proportional to 548,841.30, 823,780.35 and 338,889.30 is: 508,654.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,841.30 : 823,780.35 = 338,889.30 : x
  2. Step 2: Convert to fraction form
    548,841.30/823,780.35 = 338,889.30/x
  3. Step 3: Cross multiply
    548,841.30x = 823,780.35 × 338,889.30
  4. Step 4: Simplify right side
    548,841.30x = 279,170,346,165.26
  5. Step 5: Solve for x
    x = 279,170,346,165.26/548,841.30
  6. Step 6: Final answer
    x = 508,654.04

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1.5x scale

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.