Home / 1,478,405.66-2,039,814.26-866,229.50

Finding the Fourth Proportional to 1,478,405.66, 2,039,814.26 and 866,229.50

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Solution

The fourth proportional to 1,478,405.66, 2,039,814.26 and 866,229.50 is: 1,195,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,405.66 : 2,039,814.26 = 866,229.50 : x
  2. Step 2: Convert to fraction form
    1,478,405.66/2,039,814.26 = 866,229.50/x
  3. Step 3: Cross multiply
    1,478,405.66x = 2,039,814.26 × 866,229.50
  4. Step 4: Simplify right side
    1,478,405.66x = 1,766,947,286,532.67
  5. Step 5: Solve for x
    x = 1,766,947,286,532.67/1,478,405.66
  6. Step 6: Final answer
    x = 1,195,170.81

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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.