Home / 1,221,046.04-1,685,144.40-677,357.12

Finding the Fourth Proportional to 1,221,046.04, 1,685,144.40 and 677,357.12

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Solution

The fourth proportional to 1,221,046.04, 1,685,144.40 and 677,357.12 is: 934,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,046.04 : 1,685,144.40 = 677,357.12 : x
  2. Step 2: Convert to fraction form
    1,221,046.04/1,685,144.40 = 677,357.12/x
  3. Step 3: Cross multiply
    1,221,046.04x = 1,685,144.40 × 677,357.12
  4. Step 4: Simplify right side
    1,221,046.04x = 1,141,444,557,568.13
  5. Step 5: Solve for x
    x = 1,141,444,557,568.13/1,221,046.04
  6. Step 6: Final answer
    x = 934,808.78

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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.