Home / 792,530.40-1,188,939.60-259,903.20

Finding the Fourth Proportional to 792,530.40, 1,188,939.60 and 259,903.20

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Solution

The fourth proportional to 792,530.40, 1,188,939.60 and 259,903.20 is: 389,902.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,530.40 : 1,188,939.60 = 259,903.20 : x
  2. Step 2: Convert to fraction form
    792,530.40/1,188,939.60 = 259,903.20/x
  3. Step 3: Cross multiply
    792,530.40x = 1,188,939.60 × 259,903.20
  4. Step 4: Simplify right side
    792,530.40x = 309,009,206,646.72
  5. Step 5: Solve for x
    x = 309,009,206,646.72/792,530.40
  6. Step 6: Final answer
    x = 389,902.02

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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.