Home / 814,088.88-1,221,191.78-215,044.20

Finding the Fourth Proportional to 814,088.88, 1,221,191.78 and 215,044.20

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Solution

The fourth proportional to 814,088.88, 1,221,191.78 and 215,044.20 is: 322,581.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,088.88 : 1,221,191.78 = 215,044.20 : x
  2. Step 2: Convert to fraction form
    814,088.88/1,221,191.78 = 215,044.20/x
  3. Step 3: Cross multiply
    814,088.88x = 1,221,191.78 × 215,044.20
  4. Step 4: Simplify right side
    814,088.88x = 262,610,208,301.46
  5. Step 5: Solve for x
    x = 262,610,208,301.46/814,088.88
  6. Step 6: Final answer
    x = 322,581.74

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1.5x scale

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.