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Finding the Fourth Proportional to 1,376,633.04, 1,899,806.90 and 941,961.54

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Solution

The fourth proportional to 1,376,633.04, 1,899,806.90 and 941,961.54 is: 1,299,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,633.04 : 1,899,806.90 = 941,961.54 : x
  2. Step 2: Convert to fraction form
    1,376,633.04/1,899,806.90 = 941,961.54/x
  3. Step 3: Cross multiply
    1,376,633.04x = 1,899,806.90 × 941,961.54
  4. Step 4: Simplify right side
    1,376,633.04x = 1,789,545,028,516.82
  5. Step 5: Solve for x
    x = 1,789,545,028,516.82/1,376,633.04
  6. Step 6: Final answer
    x = 1,299,943.40

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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.