Home / 814,538.43-1,221,866.10-215,492.50

Finding the Fourth Proportional to 814,538.43, 1,221,866.10 and 215,492.50

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Solution

The fourth proportional to 814,538.43, 1,221,866.10 and 215,492.50 is: 323,254.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,538.43 : 1,221,866.10 = 215,492.50 : x
  2. Step 2: Convert to fraction form
    814,538.43/1,221,866.10 = 215,492.50/x
  3. Step 3: Cross multiply
    814,538.43x = 1,221,866.10 × 215,492.50
  4. Step 4: Simplify right side
    814,538.43x = 263,302,982,081.58
  5. Step 5: Solve for x
    x = 263,302,982,081.58/814,538.43
  6. Step 6: Final answer
    x = 323,254.22

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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.