Home / 691,640.70-1,037,551.76-270,861.90

Finding the Fourth Proportional to 691,640.70, 1,037,551.76 and 270,861.90

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Solution

The fourth proportional to 691,640.70, 1,037,551.76 and 270,861.90 is: 406,328.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,640.70 : 1,037,551.76 = 270,861.90 : x
  2. Step 2: Convert to fraction form
    691,640.70/1,037,551.76 = 270,861.90/x
  3. Step 3: Cross multiply
    691,640.70x = 1,037,551.76 × 270,861.90
  4. Step 4: Simplify right side
    691,640.70x = 281,033,241,061.94
  5. Step 5: Solve for x
    x = 281,033,241,061.94/691,640.70
  6. Step 6: Final answer
    x = 406,328.37

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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.