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Finding the Fourth Proportional to 1,333,434, 1,840,138.92 and 729,822

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Solution

The fourth proportional to 1,333,434, 1,840,138.92 and 729,822 is: 1,007,154.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,434 : 1,840,138.92 = 729,822 : x
  2. Step 2: Convert to fraction form
    1,333,434/1,840,138.92 = 729,822/x
  3. Step 3: Cross multiply
    1,333,434x = 1,840,138.92 × 729,822
  4. Step 4: Simplify right side
    1,333,434x = 1,342,973,866,872.24
  5. Step 5: Solve for x
    x = 1,342,973,866,872.24/1,333,434
  6. Step 6: Final answer
    x = 1,007,154.36

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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.