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Finding the Fourth Proportional to 609,654.40, 915,071.84 and 294,332.56

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Solution

The fourth proportional to 609,654.40, 915,071.84 and 294,332.56 is: 441,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,654.40 : 915,071.84 = 294,332.56 : x
  2. Step 2: Convert to fraction form
    609,654.40/915,071.84 = 294,332.56/x
  3. Step 3: Cross multiply
    609,654.40x = 915,071.84 × 294,332.56
  4. Step 4: Simplify right side
    609,654.40x = 269,335,437,251.11
  5. Step 5: Solve for x
    x = 269,335,437,251.11/609,654.40
  6. Step 6: Final answer
    x = 441,783.80

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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.