Home / 527,509.49-789,003.60-489,219.98

Finding the Fourth Proportional to 527,509.49, 789,003.60 and 489,219.98

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Solution

The fourth proportional to 527,509.49, 789,003.60 and 489,219.98 is: 731,733.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,509.49 : 789,003.60 = 489,219.98 : x
  2. Step 2: Convert to fraction form
    527,509.49/789,003.60 = 489,219.98/x
  3. Step 3: Cross multiply
    527,509.49x = 789,003.60 × 489,219.98
  4. Step 4: Simplify right side
    527,509.49x = 385,996,321,466.91
  5. Step 5: Solve for x
    x = 385,996,321,466.91/527,509.49
  6. Step 6: Final answer
    x = 731,733.42

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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.