Home / 814,055.16-1,221,141.07-215,010.35

Finding the Fourth Proportional to 814,055.16, 1,221,141.07 and 215,010.35

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Solution

The fourth proportional to 814,055.16, 1,221,141.07 and 215,010.35 is: 322,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,055.16 : 1,221,141.07 = 215,010.35 : x
  2. Step 2: Convert to fraction form
    814,055.16/1,221,141.07 = 215,010.35/x
  3. Step 3: Cross multiply
    814,055.16x = 1,221,141.07 × 215,010.35
  4. Step 4: Simplify right side
    814,055.16x = 262,557,966,392.98
  5. Step 5: Solve for x
    x = 262,557,966,392.98/814,055.16
  6. Step 6: Final answer
    x = 322,530.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.