Home / 3,609,943.30-4,981,776.87-1,978,337.42

Finding the Fourth Proportional to 3,609,943.30, 4,981,776.87 and 1,978,337.42

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Solution

The fourth proportional to 3,609,943.30, 4,981,776.87 and 1,978,337.42 is: 2,730,135.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609,943.30 : 4,981,776.87 = 1,978,337.42 : x
  2. Step 2: Convert to fraction form
    3,609,943.30/4,981,776.87 = 1,978,337.42/x
  3. Step 3: Cross multiply
    3,609,943.30x = 4,981,776.87 × 1,978,337.42
  4. Step 4: Simplify right side
    3,609,943.30x = 9,855,635,590,074.87
  5. Step 5: Solve for x
    x = 9,855,635,590,074.87/3,609,943.30
  6. Step 6: Final answer
    x = 2,730,135.84

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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.