Home / 764,897.40-1,147,455.45-259,481.70

Finding the Fourth Proportional to 764,897.40, 1,147,455.45 and 259,481.70

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Solution

The fourth proportional to 764,897.40, 1,147,455.45 and 259,481.70 is: 389,259.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,897.40 : 1,147,455.45 = 259,481.70 : x
  2. Step 2: Convert to fraction form
    764,897.40/1,147,455.45 = 259,481.70/x
  3. Step 3: Cross multiply
    764,897.40x = 1,147,455.45 × 259,481.70
  4. Step 4: Simplify right side
    764,897.40x = 297,743,690,840.27
  5. Step 5: Solve for x
    x = 297,743,690,840.27/764,897.40
  6. Step 6: Final answer
    x = 389,259.65

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Similar ratio
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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.