Home / 2,189,724.14-3,021,789.02-1,272,471.50

Finding the Fourth Proportional to 2,189,724.14, 3,021,789.02 and 1,272,471.50

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Solution

The fourth proportional to 2,189,724.14, 3,021,789.02 and 1,272,471.50 is: 1,755,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,724.14 : 3,021,789.02 = 1,272,471.50 : x
  2. Step 2: Convert to fraction form
    2,189,724.14/3,021,789.02 = 1,272,471.50/x
  3. Step 3: Cross multiply
    2,189,724.14x = 3,021,789.02 × 1,272,471.50
  4. Step 4: Simplify right side
    2,189,724.14x = 3,845,140,406,962.93
  5. Step 5: Solve for x
    x = 3,845,140,406,962.93/2,189,724.14
  6. Step 6: Final answer
    x = 1,755,993.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.