Home / 1,221,381.38-1,685,581.74-705,229.56

Finding the Fourth Proportional to 1,221,381.38, 1,685,581.74 and 705,229.56

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Solution

The fourth proportional to 1,221,381.38, 1,685,581.74 and 705,229.56 is: 973,260.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,381.38 : 1,685,581.74 = 705,229.56 : x
  2. Step 2: Convert to fraction form
    1,221,381.38/1,685,581.74 = 705,229.56/x
  3. Step 3: Cross multiply
    1,221,381.38x = 1,685,581.74 × 705,229.56
  4. Step 4: Simplify right side
    1,221,381.38x = 1,188,722,068,844.23
  5. Step 5: Solve for x
    x = 1,188,722,068,844.23/1,221,381.38
  6. Step 6: Final answer
    x = 973,260.35

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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.