Home / 2,780,732.81-4,169,575.31-861,111.11

Finding the Fourth Proportional to 2,780,732.81, 4,169,575.31 and 861,111.11

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Solution

The fourth proportional to 2,780,732.81, 4,169,575.31 and 861,111.11 is: 1,291,194.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,732.81 : 4,169,575.31 = 861,111.11 : x
  2. Step 2: Convert to fraction form
    2,780,732.81/4,169,575.31 = 861,111.11/x
  3. Step 3: Cross multiply
    2,780,732.81x = 4,169,575.31 × 861,111.11
  4. Step 4: Simplify right side
    2,780,732.81x = 3,590,467,629,541.08
  5. Step 5: Solve for x
    x = 3,590,467,629,541.08/2,780,732.81
  6. Step 6: Final answer
    x = 1,291,194.76

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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.