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Finding the Fourth Proportional to 545,853.66, 818,624.97 and 345,872.22

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Solution

The fourth proportional to 545,853.66, 818,624.97 and 345,872.22 is: 518,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,853.66 : 818,624.97 = 345,872.22 : x
  2. Step 2: Convert to fraction form
    545,853.66/818,624.97 = 345,872.22/x
  3. Step 3: Cross multiply
    545,853.66x = 818,624.97 × 345,872.22
  4. Step 4: Simplify right side
    545,853.66x = 283,139,635,721.33
  5. Step 5: Solve for x
    x = 283,139,635,721.33/545,853.66
  6. Step 6: Final answer
    x = 518,709.79

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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.