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Finding the Fourth Proportional to 550,618.81, 825,753.25 and 374,259.13

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Solution

The fourth proportional to 550,618.81, 825,753.25 and 374,259.13 is: 561,269.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,618.81 : 825,753.25 = 374,259.13 : x
  2. Step 2: Convert to fraction form
    550,618.81/825,753.25 = 374,259.13/x
  3. Step 3: Cross multiply
    550,618.81x = 825,753.25 × 374,259.13
  4. Step 4: Simplify right side
    550,618.81x = 309,045,691,343.11
  5. Step 5: Solve for x
    x = 309,045,691,343.11/550,618.81
  6. Step 6: Final answer
    x = 561,269.77

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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.