Home / 1,987,299.90-2,742,484.23-1,081,888.38

Finding the Fourth Proportional to 1,987,299.90, 2,742,484.23 and 1,081,888.38

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Solution

The fourth proportional to 1,987,299.90, 2,742,484.23 and 1,081,888.38 is: 1,493,011.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,299.90 : 2,742,484.23 = 1,081,888.38 : x
  2. Step 2: Convert to fraction form
    1,987,299.90/2,742,484.23 = 1,081,888.38/x
  3. Step 3: Cross multiply
    1,987,299.90x = 2,742,484.23 × 1,081,888.38
  4. Step 4: Simplify right side
    1,987,299.90x = 2,967,061,820,770.25
  5. Step 5: Solve for x
    x = 2,967,061,820,770.25/1,987,299.90
  6. Step 6: Final answer
    x = 1,493,011.61

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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.