Home / 779,717.20-1,170,013.20-330,361.60

Finding the Fourth Proportional to 779,717.20, 1,170,013.20 and 330,361.60

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Solution

The fourth proportional to 779,717.20, 1,170,013.20 and 330,361.60 is: 495,727.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,717.20 : 1,170,013.20 = 330,361.60 : x
  2. Step 2: Convert to fraction form
    779,717.20/1,170,013.20 = 330,361.60/x
  3. Step 3: Cross multiply
    779,717.20x = 1,170,013.20 × 330,361.60
  4. Step 4: Simplify right side
    779,717.20x = 386,527,432,773.12
  5. Step 5: Solve for x
    x = 386,527,432,773.12/779,717.20
  6. Step 6: Final answer
    x = 495,727.72

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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.