Home / 1,259,326.74-1,737,907.30-686,404.02

Finding the Fourth Proportional to 1,259,326.74, 1,737,907.30 and 686,404.02

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Solution

The fourth proportional to 1,259,326.74, 1,737,907.30 and 686,404.02 is: 947,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,326.74 : 1,737,907.30 = 686,404.02 : x
  2. Step 2: Convert to fraction form
    1,259,326.74/1,737,907.30 = 686,404.02/x
  3. Step 3: Cross multiply
    1,259,326.74x = 1,737,907.30 × 686,404.02
  4. Step 4: Simplify right side
    1,259,326.74x = 1,192,906,557,107.35
  5. Step 5: Solve for x
    x = 1,192,906,557,107.35/1,259,326.74
  6. Step 6: Final answer
    x = 947,257.39

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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.