Home / 787,993.06-1,182,268.86-388,913.98

Finding the Fourth Proportional to 787,993.06, 1,182,268.86 and 388,913.98

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Solution

The fourth proportional to 787,993.06, 1,182,268.86 and 388,913.98 is: 583,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,993.06 : 1,182,268.86 = 388,913.98 : x
  2. Step 2: Convert to fraction form
    787,993.06/1,182,268.86 = 388,913.98/x
  3. Step 3: Cross multiply
    787,993.06x = 1,182,268.86 × 388,913.98
  4. Step 4: Simplify right side
    787,993.06x = 459,800,887,772.66
  5. Step 5: Solve for x
    x = 459,800,887,772.66/787,993.06
  6. Step 6: Final answer
    x = 583,508.80

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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.