Home / 792,145.80-1,188,207.90-259,684.20

Finding the Fourth Proportional to 792,145.80, 1,188,207.90 and 259,684.20

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Solution

The fourth proportional to 792,145.80, 1,188,207.90 and 259,684.20 is: 389,522.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,145.80 : 1,188,207.90 = 259,684.20 : x
  2. Step 2: Convert to fraction form
    792,145.80/1,188,207.90 = 259,684.20/x
  3. Step 3: Cross multiply
    792,145.80x = 1,188,207.90 × 259,684.20
  4. Step 4: Simplify right side
    792,145.80x = 308,558,817,945.18
  5. Step 5: Solve for x
    x = 308,558,817,945.18/792,145.80
  6. Step 6: Final answer
    x = 389,522.76

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Double scale
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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.