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Finding the Fourth Proportional to 529,367, 730,526.46 and 290,903

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Solution

The fourth proportional to 529,367, 730,526.46 and 290,903 is: 401,446.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,367 : 730,526.46 = 290,903 : x
  2. Step 2: Convert to fraction form
    529,367/730,526.46 = 290,903/x
  3. Step 3: Cross multiply
    529,367x = 730,526.46 × 290,903
  4. Step 4: Simplify right side
    529,367x = 212,512,338,793.38
  5. Step 5: Solve for x
    x = 212,512,338,793.38/529,367
  6. Step 6: Final answer
    x = 401,446.14

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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.