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Finding the Fourth Proportional to 611,699.44, 917,044 and 269,899.53

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Solution

The fourth proportional to 611,699.44, 917,044 and 269,899.53 is: 404,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,699.44 : 917,044 = 269,899.53 : x
  2. Step 2: Convert to fraction form
    611,699.44/917,044 = 269,899.53/x
  3. Step 3: Cross multiply
    611,699.44x = 917,044 × 269,899.53
  4. Step 4: Simplify right side
    611,699.44x = 247,509,744,589.32
  5. Step 5: Solve for x
    x = 247,509,744,589.32/611,699.44
  6. Step 6: Final answer
    x = 404,626.40

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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.