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Finding the Fourth Proportional to 808,150.80, 1,212,571.80 and 508,861.20

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Solution

The fourth proportional to 808,150.80, 1,212,571.80 and 508,861.20 is: 763,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,150.80 : 1,212,571.80 = 508,861.20 : x
  2. Step 2: Convert to fraction form
    808,150.80/1,212,571.80 = 508,861.20/x
  3. Step 3: Cross multiply
    808,150.80x = 1,212,571.80 × 508,861.20
  4. Step 4: Simplify right side
    808,150.80x = 617,030,741,234.16
  5. Step 5: Solve for x
    x = 617,030,741,234.16/808,150.80
  6. Step 6: Final answer
    x = 763,509.41

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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.