Home / 579,211.40-869,076.30-263,505.80

Finding the Fourth Proportional to 579,211.40, 869,076.30 and 263,505.80

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Solution

The fourth proportional to 579,211.40, 869,076.30 and 263,505.80 is: 395,376.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,211.40 : 869,076.30 = 263,505.80 : x
  2. Step 2: Convert to fraction form
    579,211.40/869,076.30 = 263,505.80/x
  3. Step 3: Cross multiply
    579,211.40x = 869,076.30 × 263,505.80
  4. Step 4: Simplify right side
    579,211.40x = 229,006,645,692.54
  5. Step 5: Solve for x
    x = 229,006,645,692.54/579,211.40
  6. Step 6: Final answer
    x = 395,376.62

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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.