Home / 909,874.07-1,364,761.89-278,789.71

Finding the Fourth Proportional to 909,874.07, 1,364,761.89 and 278,789.71

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Solution

The fourth proportional to 909,874.07, 1,364,761.89 and 278,789.71 is: 418,169.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,874.07 : 1,364,761.89 = 278,789.71 : x
  2. Step 2: Convert to fraction form
    909,874.07/1,364,761.89 = 278,789.71/x
  3. Step 3: Cross multiply
    909,874.07x = 1,364,761.89 × 278,789.71
  4. Step 4: Simplify right side
    909,874.07x = 380,481,564,708.34
  5. Step 5: Solve for x
    x = 380,481,564,708.34/909,874.07
  6. Step 6: Final answer
    x = 418,169.48

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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.