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Finding the Fourth Proportional to 609,819.21, 915,566.73 and 310,500.93

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Solution

The fourth proportional to 609,819.21, 915,566.73 and 310,500.93 is: 466,178.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,819.21 : 915,566.73 = 310,500.93 : x
  2. Step 2: Convert to fraction form
    609,819.21/915,566.73 = 310,500.93/x
  3. Step 3: Cross multiply
    609,819.21x = 915,566.73 × 310,500.93
  4. Step 4: Simplify right side
    609,819.21x = 284,284,321,142.06
  5. Step 5: Solve for x
    x = 284,284,321,142.06/609,819.21
  6. Step 6: Final answer
    x = 466,178.04

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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.