Home / 2,140,988.74-3,210,420.51-681,844.91

Finding the Fourth Proportional to 2,140,988.74, 3,210,420.51 and 681,844.91

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Solution

The fourth proportional to 2,140,988.74, 3,210,420.51 and 681,844.91 is: 1,022,428.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,988.74 : 3,210,420.51 = 681,844.91 : x
  2. Step 2: Convert to fraction form
    2,140,988.74/3,210,420.51 = 681,844.91/x
  3. Step 3: Cross multiply
    2,140,988.74x = 3,210,420.51 × 681,844.91
  4. Step 4: Simplify right side
    2,140,988.74x = 2,189,008,867,651.00
  5. Step 5: Solve for x
    x = 2,189,008,867,651.00/2,140,988.74
  6. Step 6: Final answer
    x = 1,022,428.95

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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.