Home / 1,147,874.56-1,583,639.04-717,991.36

Finding the Fourth Proportional to 1,147,874.56, 1,583,639.04 and 717,991.36

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Solution

The fourth proportional to 1,147,874.56, 1,583,639.04 and 717,991.36 is: 990,560.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,874.56 : 1,583,639.04 = 717,991.36 : x
  2. Step 2: Convert to fraction form
    1,147,874.56/1,583,639.04 = 717,991.36/x
  3. Step 3: Cross multiply
    1,147,874.56x = 1,583,639.04 × 717,991.36
  4. Step 4: Simplify right side
    1,147,874.56x = 1,137,039,148,078.69
  5. Step 5: Solve for x
    x = 1,137,039,148,078.69/1,147,874.56
  6. Step 6: Final answer
    x = 990,560.46

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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.