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Finding the Fourth Proportional to 609,817.48, 915,564.10 and 310,499.18

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Solution

The fourth proportional to 609,817.48, 915,564.10 and 310,499.18 is: 466,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,817.48 : 915,564.10 = 310,499.18 : x
  2. Step 2: Convert to fraction form
    609,817.48/915,564.10 = 310,499.18/x
  3. Step 3: Cross multiply
    609,817.48x = 915,564.10 × 310,499.18
  4. Step 4: Simplify right side
    609,817.48x = 284,281,902,287.44
  5. Step 5: Solve for x
    x = 284,281,902,287.44/609,817.48
  6. Step 6: Final answer
    x = 466,175.39

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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.