Home / 1,980,986.45-2,728,864.37-1,689,648.89

Finding the Fourth Proportional to 1,980,986.45, 2,728,864.37 and 1,689,648.89

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Solution

The fourth proportional to 1,980,986.45, 2,728,864.37 and 1,689,648.89 is: 2,327,538.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,986.45 : 2,728,864.37 = 1,689,648.89 : x
  2. Step 2: Convert to fraction form
    1,980,986.45/2,728,864.37 = 1,689,648.89/x
  3. Step 3: Cross multiply
    1,980,986.45x = 2,728,864.37 × 1,689,648.89
  4. Step 4: Simplify right side
    1,980,986.45x = 4,610,822,645,282.81
  5. Step 5: Solve for x
    x = 4,610,822,645,282.81/1,980,986.45
  6. Step 6: Final answer
    x = 2,327,538.71

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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.