Home / 1,226,398.52-1,690,982.02-839,400.37

Finding the Fourth Proportional to 1,226,398.52, 1,690,982.02 and 839,400.37

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Solution

The fourth proportional to 1,226,398.52, 1,690,982.02 and 839,400.37 is: 1,157,381.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,398.52 : 1,690,982.02 = 839,400.37 : x
  2. Step 2: Convert to fraction form
    1,226,398.52/1,690,982.02 = 839,400.37/x
  3. Step 3: Cross multiply
    1,226,398.52x = 1,690,982.02 × 839,400.37
  4. Step 4: Simplify right side
    1,226,398.52x = 1,419,410,930,073.14
  5. Step 5: Solve for x
    x = 1,419,410,930,073.14/1,226,398.52
  6. Step 6: Final answer
    x = 1,157,381.47

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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.