Home / 646,611.52-969,917.28-225,891.04

Finding the Fourth Proportional to 646,611.52, 969,917.28 and 225,891.04

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Solution

The fourth proportional to 646,611.52, 969,917.28 and 225,891.04 is: 338,836.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,611.52 : 969,917.28 = 225,891.04 : x
  2. Step 2: Convert to fraction form
    646,611.52/969,917.28 = 225,891.04/x
  3. Step 3: Cross multiply
    646,611.52x = 969,917.28 × 225,891.04
  4. Step 4: Simplify right side
    646,611.52x = 219,095,623,093.17
  5. Step 5: Solve for x
    x = 219,095,623,093.17/646,611.52
  6. Step 6: Final answer
    x = 338,836.56

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Double scale
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Similar ratio
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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.