Home / 787,887.19-1,182,199.84-388,310.14

Finding the Fourth Proportional to 787,887.19, 1,182,199.84 and 388,310.14

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Solution

The fourth proportional to 787,887.19, 1,182,199.84 and 388,310.14 is: 582,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,887.19 : 1,182,199.84 = 388,310.14 : x
  2. Step 2: Convert to fraction form
    787,887.19/1,182,199.84 = 388,310.14/x
  3. Step 3: Cross multiply
    787,887.19x = 1,182,199.84 × 388,310.14
  4. Step 4: Simplify right side
    787,887.19x = 459,060,185,378.38
  5. Step 5: Solve for x
    x = 459,060,185,378.38/787,887.19
  6. Step 6: Final answer
    x = 582,647.10

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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.