Home / 1,427,879.61-2,142,380.14-628,600.37

Finding the Fourth Proportional to 1,427,879.61, 2,142,380.14 and 628,600.37

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Solution

The fourth proportional to 1,427,879.61, 2,142,380.14 and 628,600.37 is: 943,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,879.61 : 2,142,380.14 = 628,600.37 : x
  2. Step 2: Convert to fraction form
    1,427,879.61/2,142,380.14 = 628,600.37/x
  3. Step 3: Cross multiply
    1,427,879.61x = 2,142,380.14 × 628,600.37
  4. Step 4: Simplify right side
    1,427,879.61x = 1,346,700,936,401.25
  5. Step 5: Solve for x
    x = 1,346,700,936,401.25/1,427,879.61
  6. Step 6: Final answer
    x = 943,147.40

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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.