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Finding the Fourth Proportional to 609,714.80, 915,090.60 and 273,273.20

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Solution

The fourth proportional to 609,714.80, 915,090.60 and 273,273.20 is: 410,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,714.80 : 915,090.60 = 273,273.20 : x
  2. Step 2: Convert to fraction form
    609,714.80/915,090.60 = 273,273.20/x
  3. Step 3: Cross multiply
    609,714.80x = 915,090.60 × 273,273.20
  4. Step 4: Simplify right side
    609,714.80x = 250,069,736,551.92
  5. Step 5: Solve for x
    x = 250,069,736,551.92/609,714.80
  6. Step 6: Final answer
    x = 410,142.15

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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.