Home / 851,325.71-1,276,951.64-211,615.91

Finding the Fourth Proportional to 851,325.71, 1,276,951.64 and 211,615.91

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Solution

The fourth proportional to 851,325.71, 1,276,951.64 and 211,615.91 is: 317,414.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,325.71 : 1,276,951.64 = 211,615.91 : x
  2. Step 2: Convert to fraction form
    851,325.71/1,276,951.64 = 211,615.91/x
  3. Step 3: Cross multiply
    851,325.71x = 1,276,951.64 × 211,615.91
  4. Step 4: Simplify right side
    851,325.71x = 270,223,275,881.76
  5. Step 5: Solve for x
    x = 270,223,275,881.76/851,325.71
  6. Step 6: Final answer
    x = 317,414.68

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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.