Home / 2,101,563.48-3,151,217.68-661,978.02

Finding the Fourth Proportional to 2,101,563.48, 3,151,217.68 and 661,978.02

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Solution

The fourth proportional to 2,101,563.48, 3,151,217.68 and 661,978.02 is: 992,611.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101,563.48 : 3,151,217.68 = 661,978.02 : x
  2. Step 2: Convert to fraction form
    2,101,563.48/3,151,217.68 = 661,978.02/x
  3. Step 3: Cross multiply
    2,101,563.48x = 3,151,217.68 × 661,978.02
  4. Step 4: Simplify right side
    2,101,563.48x = 2,086,036,840,395.39
  5. Step 5: Solve for x
    x = 2,086,036,840,395.39/2,101,563.48
  6. Step 6: Final answer
    x = 992,611.86

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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.