Home / 1,191,867.53-1,787,856.38-393,218.87

Finding the Fourth Proportional to 1,191,867.53, 1,787,856.38 and 393,218.87

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Solution

The fourth proportional to 1,191,867.53, 1,787,856.38 and 393,218.87 is: 589,846.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,867.53 : 1,787,856.38 = 393,218.87 : x
  2. Step 2: Convert to fraction form
    1,191,867.53/1,787,856.38 = 393,218.87/x
  3. Step 3: Cross multiply
    1,191,867.53x = 1,787,856.38 × 393,218.87
  4. Step 4: Simplify right side
    1,191,867.53x = 703,018,863,499.80
  5. Step 5: Solve for x
    x = 703,018,863,499.80/1,191,867.53
  6. Step 6: Final answer
    x = 589,846.48

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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.