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Finding the Fourth Proportional to 558,617.50, 770,885.66 and 303,964.30

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Solution

The fourth proportional to 558,617.50, 770,885.66 and 303,964.30 is: 419,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,617.50 : 770,885.66 = 303,964.30 : x
  2. Step 2: Convert to fraction form
    558,617.50/770,885.66 = 303,964.30/x
  3. Step 3: Cross multiply
    558,617.50x = 770,885.66 × 303,964.30
  4. Step 4: Simplify right side
    558,617.50x = 234,321,720,021.94
  5. Step 5: Solve for x
    x = 234,321,720,021.94/558,617.50
  6. Step 6: Final answer
    x = 419,467.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.