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Finding the Fourth Proportional to 787,903.94, 1,182,225 and 388,326.89

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Solution

The fourth proportional to 787,903.94, 1,182,225 and 388,326.89 is: 582,672.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,903.94 : 1,182,225 = 388,326.89 : x
  2. Step 2: Convert to fraction form
    787,903.94/1,182,225 = 388,326.89/x
  3. Step 3: Cross multiply
    787,903.94x = 1,182,225 × 388,326.89
  4. Step 4: Simplify right side
    787,903.94x = 459,089,757,530.25
  5. Step 5: Solve for x
    x = 459,089,757,530.25/787,903.94
  6. Step 6: Final answer
    x = 582,672.24

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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.