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Finding the Fourth Proportional to 558,530.88, 770,775.84 and 303,883.80

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Solution

The fourth proportional to 558,530.88, 770,775.84 and 303,883.80 is: 419,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,530.88 : 770,775.84 = 303,883.80 : x
  2. Step 2: Convert to fraction form
    558,530.88/770,775.84 = 303,883.80/x
  3. Step 3: Cross multiply
    558,530.88x = 770,775.84 × 303,883.80
  4. Step 4: Simplify right side
    558,530.88x = 234,226,291,207.39
  5. Step 5: Solve for x
    x = 234,226,291,207.39/558,530.88
  6. Step 6: Final answer
    x = 419,361.40

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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.