Home / 515,276.06-772,904.97-211,604.43

Finding the Fourth Proportional to 515,276.06, 772,904.97 and 211,604.43

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Solution

The fourth proportional to 515,276.06, 772,904.97 and 211,604.43 is: 317,402.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,276.06 : 772,904.97 = 211,604.43 : x
  2. Step 2: Convert to fraction form
    515,276.06/772,904.97 = 211,604.43/x
  3. Step 3: Cross multiply
    515,276.06x = 772,904.97 × 211,604.43
  4. Step 4: Simplify right side
    515,276.06x = 163,550,112,890.73
  5. Step 5: Solve for x
    x = 163,550,112,890.73/515,276.06
  6. Step 6: Final answer
    x = 317,402.90

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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.