Home / 909,228.97-1,363,794.02-278,142.78

Finding the Fourth Proportional to 909,228.97, 1,363,794.02 and 278,142.78

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Solution

The fourth proportional to 909,228.97, 1,363,794.02 and 278,142.78 is: 417,199.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,228.97 : 1,363,794.02 = 278,142.78 : x
  2. Step 2: Convert to fraction form
    909,228.97/1,363,794.02 = 278,142.78/x
  3. Step 3: Cross multiply
    909,228.97x = 1,363,794.02 × 278,142.78
  4. Step 4: Simplify right side
    909,228.97x = 379,329,460,609.90
  5. Step 5: Solve for x
    x = 379,329,460,609.90/909,228.97
  6. Step 6: Final answer
    x = 417,199.05

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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.