Home / 659,214.80-989,081.40-259,787.60

Finding the Fourth Proportional to 659,214.80, 989,081.40 and 259,787.60

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Solution

The fourth proportional to 659,214.80, 989,081.40 and 259,787.60 is: 389,783.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,214.80 : 989,081.40 = 259,787.60 : x
  2. Step 2: Convert to fraction form
    659,214.80/989,081.40 = 259,787.60/x
  3. Step 3: Cross multiply
    659,214.80x = 989,081.40 × 259,787.60
  4. Step 4: Simplify right side
    659,214.80x = 256,951,083,110.64
  5. Step 5: Solve for x
    x = 256,951,083,110.64/659,214.80
  6. Step 6: Final answer
    x = 389,783.55

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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.