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Finding the Fourth Proportional to 681,269.90, 940,107.33 and 409,349.25

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Solution

The fourth proportional to 681,269.90, 940,107.33 and 409,349.25 is: 564,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,269.90 : 940,107.33 = 409,349.25 : x
  2. Step 2: Convert to fraction form
    681,269.90/940,107.33 = 409,349.25/x
  3. Step 3: Cross multiply
    681,269.90x = 940,107.33 × 409,349.25
  4. Step 4: Simplify right side
    681,269.90x = 384,832,230,455.00
  5. Step 5: Solve for x
    x = 384,832,230,455.00/681,269.90
  6. Step 6: Final answer
    x = 564,874.85

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1.5x scale

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.