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Finding the Fourth Proportional to 587,209.40, 880,814.10 and 489,231.80

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Solution

The fourth proportional to 587,209.40, 880,814.10 and 489,231.80 is: 733,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,209.40 : 880,814.10 = 489,231.80 : x
  2. Step 2: Convert to fraction form
    587,209.40/880,814.10 = 489,231.80/x
  3. Step 3: Cross multiply
    587,209.40x = 880,814.10 × 489,231.80
  4. Step 4: Simplify right side
    587,209.40x = 430,922,267,608.38
  5. Step 5: Solve for x
    x = 430,922,267,608.38/587,209.40
  6. Step 6: Final answer
    x = 733,847.70

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Similar ratio
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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.