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Finding the Fourth Proportional to 515,597.28, 773,394.54 and 290,855.69

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Solution

The fourth proportional to 515,597.28, 773,394.54 and 290,855.69 is: 436,282.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,597.28 : 773,394.54 = 290,855.69 : x
  2. Step 2: Convert to fraction form
    515,597.28/773,394.54 = 290,855.69/x
  3. Step 3: Cross multiply
    515,597.28x = 773,394.54 × 290,855.69
  4. Step 4: Simplify right side
    515,597.28x = 224,946,202,573.93
  5. Step 5: Solve for x
    x = 224,946,202,573.93/515,597.28
  6. Step 6: Final answer
    x = 436,282.76

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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.