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Finding the Fourth Proportional to 938,073, 1,295,610 and 635,742.12

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Solution

The fourth proportional to 938,073, 1,295,610 and 635,742.12 is: 878,048.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,073 : 1,295,610 = 635,742.12 : x
  2. Step 2: Convert to fraction form
    938,073/1,295,610 = 635,742.12/x
  3. Step 3: Cross multiply
    938,073x = 1,295,610 × 635,742.12
  4. Step 4: Simplify right side
    938,073x = 823,673,848,093.20
  5. Step 5: Solve for x
    x = 823,673,848,093.20/938,073
  6. Step 6: Final answer
    x = 878,048.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.