Home / 1,165,912.56-1,608,916.86-649,639.78

Finding the Fourth Proportional to 1,165,912.56, 1,608,916.86 and 649,639.78

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Solution

The fourth proportional to 1,165,912.56, 1,608,916.86 and 649,639.78 is: 896,479.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,912.56 : 1,608,916.86 = 649,639.78 : x
  2. Step 2: Convert to fraction form
    1,165,912.56/1,608,916.86 = 649,639.78/x
  3. Step 3: Cross multiply
    1,165,912.56x = 1,608,916.86 × 649,639.78
  4. Step 4: Simplify right side
    1,165,912.56x = 1,045,216,394,968.69
  5. Step 5: Solve for x
    x = 1,045,216,394,968.69/1,165,912.56
  6. Step 6: Final answer
    x = 896,479.23

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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.