Home / 909,229.74-1,363,795.18-278,143.55

Finding the Fourth Proportional to 909,229.74, 1,363,795.18 and 278,143.55

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Solution

The fourth proportional to 909,229.74, 1,363,795.18 and 278,143.55 is: 417,200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,229.74 : 1,363,795.18 = 278,143.55 : x
  2. Step 2: Convert to fraction form
    909,229.74/1,363,795.18 = 278,143.55/x
  3. Step 3: Cross multiply
    909,229.74x = 1,363,795.18 × 278,143.55
  4. Step 4: Simplify right side
    909,229.74x = 379,330,838,109.33
  5. Step 5: Solve for x
    x = 379,330,838,109.33/909,229.74
  6. Step 6: Final answer
    x = 417,200.21

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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.