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Finding the Fourth Proportional to 526,053.80, 788,562.30 and 259,855.40

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Solution

The fourth proportional to 526,053.80, 788,562.30 and 259,855.40 is: 389,527.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,053.80 : 788,562.30 = 259,855.40 : x
  2. Step 2: Convert to fraction form
    526,053.80/788,562.30 = 259,855.40/x
  3. Step 3: Cross multiply
    526,053.80x = 788,562.30 × 259,855.40
  4. Step 4: Simplify right side
    526,053.80x = 204,912,171,891.42
  5. Step 5: Solve for x
    x = 204,912,171,891.42/526,053.80
  6. Step 6: Final answer
    x = 389,527.03

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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.