Home / 831,814.65-1,247,721.66-326,613.33

Finding the Fourth Proportional to 831,814.65, 1,247,721.66 and 326,613.33

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Solution

The fourth proportional to 831,814.65, 1,247,721.66 and 326,613.33 is: 489,919.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,814.65 : 1,247,721.66 = 326,613.33 : x
  2. Step 2: Convert to fraction form
    831,814.65/1,247,721.66 = 326,613.33/x
  3. Step 3: Cross multiply
    831,814.65x = 1,247,721.66 × 326,613.33
  4. Step 4: Simplify right side
    831,814.65x = 407,522,526,285.73
  5. Step 5: Solve for x
    x = 407,522,526,285.73/831,814.65
  6. Step 6: Final answer
    x = 489,919.87

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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.