Home / 1,269,834.54-1,904,635.17-428,393.58

Finding the Fourth Proportional to 1,269,834.54, 1,904,635.17 and 428,393.58

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Solution

The fourth proportional to 1,269,834.54, 1,904,635.17 and 428,393.58 is: 642,551.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,834.54 : 1,904,635.17 = 428,393.58 : x
  2. Step 2: Convert to fraction form
    1,269,834.54/1,904,635.17 = 428,393.58/x
  3. Step 3: Cross multiply
    1,269,834.54x = 1,904,635.17 × 428,393.58
  4. Step 4: Simplify right side
    1,269,834.54x = 815,933,479,070.21
  5. Step 5: Solve for x
    x = 815,933,479,070.21/1,269,834.54
  6. Step 6: Final answer
    x = 642,551.02

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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.