Home / 1,368,137.32-1,887,939.53-787,266.69

Finding the Fourth Proportional to 1,368,137.32, 1,887,939.53 and 787,266.69

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Solution

The fourth proportional to 1,368,137.32, 1,887,939.53 and 787,266.69 is: 1,086,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,137.32 : 1,887,939.53 = 787,266.69 : x
  2. Step 2: Convert to fraction form
    1,368,137.32/1,887,939.53 = 787,266.69/x
  3. Step 3: Cross multiply
    1,368,137.32x = 1,887,939.53 × 787,266.69
  4. Step 4: Simplify right side
    1,368,137.32x = 1,486,311,900,766.92
  5. Step 5: Solve for x
    x = 1,486,311,900,766.92/1,368,137.32
  6. Step 6: Final answer
    x = 1,086,376.26

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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.