Home / 2,139,620.30-3,209,617.25-542,183.45

Finding the Fourth Proportional to 2,139,620.30, 3,209,617.25 and 542,183.45

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Solution

The fourth proportional to 2,139,620.30, 3,209,617.25 and 542,183.45 is: 813,322.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,620.30 : 3,209,617.25 = 542,183.45 : x
  2. Step 2: Convert to fraction form
    2,139,620.30/3,209,617.25 = 542,183.45/x
  3. Step 3: Cross multiply
    2,139,620.30x = 3,209,617.25 × 542,183.45
  4. Step 4: Simplify right side
    2,139,620.30x = 1,740,201,335,025.51
  5. Step 5: Solve for x
    x = 1,740,201,335,025.51/2,139,620.30
  6. Step 6: Final answer
    x = 813,322.50

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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.