Home / 853,680.96-1,280,660.52-398,727.24

Finding the Fourth Proportional to 853,680.96, 1,280,660.52 and 398,727.24

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Solution

The fourth proportional to 853,680.96, 1,280,660.52 and 398,727.24 is: 598,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,680.96 : 1,280,660.52 = 398,727.24 : x
  2. Step 2: Convert to fraction form
    853,680.96/1,280,660.52 = 398,727.24/x
  3. Step 3: Cross multiply
    853,680.96x = 1,280,660.52 × 398,727.24
  4. Step 4: Simplify right side
    853,680.96x = 510,634,234,516.57
  5. Step 5: Solve for x
    x = 510,634,234,516.57/853,680.96
  6. Step 6: Final answer
    x = 598,155.82

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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.