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Finding the Fourth Proportional to 529,757.94, 731,060.82 and 288,040.53

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Solution

The fourth proportional to 529,757.94, 731,060.82 and 288,040.53 is: 397,493.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,757.94 : 731,060.82 = 288,040.53 : x
  2. Step 2: Convert to fraction form
    529,757.94/731,060.82 = 288,040.53/x
  3. Step 3: Cross multiply
    529,757.94x = 731,060.82 × 288,040.53
  4. Step 4: Simplify right side
    529,757.94x = 210,575,146,055.04
  5. Step 5: Solve for x
    x = 210,575,146,055.04/529,757.94
  6. Step 6: Final answer
    x = 397,493.14

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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.