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Finding the Fourth Proportional to 528,910.74, 729,716.53 and 338,034.24

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Solution

The fourth proportional to 528,910.74, 729,716.53 and 338,034.24 is: 466,372.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,910.74 : 729,716.53 = 338,034.24 : x
  2. Step 2: Convert to fraction form
    528,910.74/729,716.53 = 338,034.24/x
  3. Step 3: Cross multiply
    528,910.74x = 729,716.53 × 338,034.24
  4. Step 4: Simplify right side
    528,910.74x = 246,669,172,633.99
  5. Step 5: Solve for x
    x = 246,669,172,633.99/528,910.74
  6. Step 6: Final answer
    x = 466,372.02

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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.