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Finding the Fourth Proportional to 617,701.20, 925,860.60 and 262,654.80

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Solution

The fourth proportional to 617,701.20, 925,860.60 and 262,654.80 is: 393,688.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,701.20 : 925,860.60 = 262,654.80 : x
  2. Step 2: Convert to fraction form
    617,701.20/925,860.60 = 262,654.80/x
  3. Step 3: Cross multiply
    617,701.20x = 925,860.60 × 262,654.80
  4. Step 4: Simplify right side
    617,701.20x = 243,181,730,720.88
  5. Step 5: Solve for x
    x = 243,181,730,720.88/617,701.20
  6. Step 6: Final answer
    x = 393,688.29

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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.