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Finding the Fourth Proportional to 558,509.16, 770,751.90 and 303,861.72

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Solution

The fourth proportional to 558,509.16, 770,751.90 and 303,861.72 is: 419,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,509.16 : 770,751.90 = 303,861.72 : x
  2. Step 2: Convert to fraction form
    558,509.16/770,751.90 = 303,861.72/x
  3. Step 3: Cross multiply
    558,509.16x = 770,751.90 × 303,861.72
  4. Step 4: Simplify right side
    558,509.16x = 234,201,998,027.27
  5. Step 5: Solve for x
    x = 234,201,998,027.27/558,509.16
  6. Step 6: Final answer
    x = 419,334.21

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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.