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Finding the Fourth Proportional to 558,505.12, 770,714.60 and 303,857.36

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Solution

The fourth proportional to 558,505.12, 770,714.60 and 303,857.36 is: 419,310.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,505.12 : 770,714.60 = 303,857.36 : x
  2. Step 2: Convert to fraction form
    558,505.12/770,714.60 = 303,857.36/x
  3. Step 3: Cross multiply
    558,505.12x = 770,714.60 × 303,857.36
  4. Step 4: Simplify right side
    558,505.12x = 234,187,303,669.46
  5. Step 5: Solve for x
    x = 234,187,303,669.46/558,505.12
  6. Step 6: Final answer
    x = 419,310.93

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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.