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Finding the Fourth Proportional to 521,108.88, 775,969.22 and 501,956.43

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Solution

The fourth proportional to 521,108.88, 775,969.22 and 501,956.43 is: 747,449.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,108.88 : 775,969.22 = 501,956.43 : x
  2. Step 2: Convert to fraction form
    521,108.88/775,969.22 = 501,956.43/x
  3. Step 3: Cross multiply
    521,108.88x = 775,969.22 × 501,956.43
  4. Step 4: Simplify right side
    521,108.88x = 389,502,733,071.46
  5. Step 5: Solve for x
    x = 389,502,733,071.46/521,108.88
  6. Step 6: Final answer
    x = 747,449.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.