Home / 909,908.70-1,364,813.83-278,824.33

Finding the Fourth Proportional to 909,908.70, 1,364,813.83 and 278,824.33

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Solution

The fourth proportional to 909,908.70, 1,364,813.83 and 278,824.33 is: 418,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,908.70 : 1,364,813.83 = 278,824.33 : x
  2. Step 2: Convert to fraction form
    909,908.70/1,364,813.83 = 278,824.33/x
  3. Step 3: Cross multiply
    909,908.70x = 1,364,813.83 × 278,824.33
  4. Step 4: Simplify right side
    909,908.70x = 380,543,301,724.48
  5. Step 5: Solve for x
    x = 380,543,301,724.48/909,908.70
  6. Step 6: Final answer
    x = 418,221.41

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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.