Home / 909,228.90-1,363,793.91-278,142.71

Finding the Fourth Proportional to 909,228.90, 1,363,793.91 and 278,142.71

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Solution

The fourth proportional to 909,228.90, 1,363,793.91 and 278,142.71 is: 417,198.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,228.90 : 1,363,793.91 = 278,142.71 : x
  2. Step 2: Convert to fraction form
    909,228.90/1,363,793.91 = 278,142.71/x
  3. Step 3: Cross multiply
    909,228.90x = 1,363,793.91 × 278,142.71
  4. Step 4: Simplify right side
    909,228.90x = 379,329,335,382.79
  5. Step 5: Solve for x
    x = 379,329,335,382.79/909,228.90
  6. Step 6: Final answer
    x = 417,198.94

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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.