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Finding the Fourth Proportional to 526,052.80, 788,560.80 and 259,854.40

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Solution

The fourth proportional to 526,052.80, 788,560.80 and 259,854.40 is: 389,525.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,052.80 : 788,560.80 = 259,854.40 : x
  2. Step 2: Convert to fraction form
    526,052.80/788,560.80 = 259,854.40/x
  3. Step 3: Cross multiply
    526,052.80x = 788,560.80 × 259,854.40
  4. Step 4: Simplify right side
    526,052.80x = 204,910,993,547.52
  5. Step 5: Solve for x
    x = 204,910,993,547.52/526,052.80
  6. Step 6: Final answer
    x = 389,525.53

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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.