Home / 1,396,724.85-1,927,336.68-784,780.38

Finding the Fourth Proportional to 1,396,724.85, 1,927,336.68 and 784,780.38

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Solution

The fourth proportional to 1,396,724.85, 1,927,336.68 and 784,780.38 is: 1,082,916.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,724.85 : 1,927,336.68 = 784,780.38 : x
  2. Step 2: Convert to fraction form
    1,396,724.85/1,927,336.68 = 784,780.38/x
  3. Step 3: Cross multiply
    1,396,724.85x = 1,927,336.68 × 784,780.38
  4. Step 4: Simplify right side
    1,396,724.85x = 1,512,536,012,118.34
  5. Step 5: Solve for x
    x = 1,512,536,012,118.34/1,396,724.85
  6. Step 6: Final answer
    x = 1,082,916.23

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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.