Home / 386,062.40-579,093.60-330,766.40

Finding the Fourth Proportional to 386,062.40, 579,093.60 and 330,766.40

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Solution

The fourth proportional to 386,062.40, 579,093.60 and 330,766.40 is: 496,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,062.40 : 579,093.60 = 330,766.40 : x
  2. Step 2: Convert to fraction form
    386,062.40/579,093.60 = 330,766.40/x
  3. Step 3: Cross multiply
    386,062.40x = 579,093.60 × 330,766.40
  4. Step 4: Simplify right side
    386,062.40x = 191,544,705,335.04
  5. Step 5: Solve for x
    x = 191,544,705,335.04/386,062.40
  6. Step 6: Final answer
    x = 496,149.60

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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.