Home / 814,058.16-1,221,145.56-215,013.35

Finding the Fourth Proportional to 814,058.16, 1,221,145.56 and 215,013.35

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Solution

The fourth proportional to 814,058.16, 1,221,145.56 and 215,013.35 is: 322,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,058.16 : 1,221,145.56 = 215,013.35 : x
  2. Step 2: Convert to fraction form
    814,058.16/1,221,145.56 = 215,013.35/x
  3. Step 3: Cross multiply
    814,058.16x = 1,221,145.56 × 215,013.35
  4. Step 4: Simplify right side
    814,058.16x = 262,562,591,587.50
  5. Step 5: Solve for x
    x = 262,562,591,587.50/814,058.16
  6. Step 6: Final answer
    x = 322,535.42

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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.