Home / 909,231.53-1,363,797.84-278,145.34

Finding the Fourth Proportional to 909,231.53, 1,363,797.84 and 278,145.34

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Solution

The fourth proportional to 909,231.53, 1,363,797.84 and 278,145.34 is: 417,202.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,231.53 : 1,363,797.84 = 278,145.34 : x
  2. Step 2: Convert to fraction form
    909,231.53/1,363,797.84 = 278,145.34/x
  3. Step 3: Cross multiply
    909,231.53x = 1,363,797.84 × 278,145.34
  4. Step 4: Simplify right side
    909,231.53x = 379,334,013,898.07
  5. Step 5: Solve for x
    x = 379,334,013,898.07/909,231.53
  6. Step 6: Final answer
    x = 417,202.88

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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.