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Finding the Fourth Proportional to 1,330,173, 1,835,638.94 and 726,561

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Solution

The fourth proportional to 1,330,173, 1,835,638.94 and 726,561 is: 1,002,654.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,173 : 1,835,638.94 = 726,561 : x
  2. Step 2: Convert to fraction form
    1,330,173/1,835,638.94 = 726,561/x
  3. Step 3: Cross multiply
    1,330,173x = 1,835,638.94 × 726,561
  4. Step 4: Simplify right side
    1,330,173x = 1,333,703,665,701.74
  5. Step 5: Solve for x
    x = 1,333,703,665,701.74/1,330,173
  6. Step 6: Final answer
    x = 1,002,654.29

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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.