Home / 1,519,702.48-2,279,556.38-621,143.43

Finding the Fourth Proportional to 1,519,702.48, 2,279,556.38 and 621,143.43

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Solution

The fourth proportional to 1,519,702.48, 2,279,556.38 and 621,143.43 is: 931,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519,702.48 : 2,279,556.38 = 621,143.43 : x
  2. Step 2: Convert to fraction form
    1,519,702.48/2,279,556.38 = 621,143.43/x
  3. Step 3: Cross multiply
    1,519,702.48x = 2,279,556.38 × 621,143.43
  4. Step 4: Simplify right side
    1,519,702.48x = 1,415,931,468,751.58
  5. Step 5: Solve for x
    x = 1,415,931,468,751.58/1,519,702.48
  6. Step 6: Final answer
    x = 931,716.23

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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.