Home / 787,829.36-1,182,041.83-308,399.78

Finding the Fourth Proportional to 787,829.36, 1,182,041.83 and 308,399.78

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Solution

The fourth proportional to 787,829.36, 1,182,041.83 and 308,399.78 is: 462,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,829.36 : 1,182,041.83 = 308,399.78 : x
  2. Step 2: Convert to fraction form
    787,829.36/1,182,041.83 = 308,399.78/x
  3. Step 3: Cross multiply
    787,829.36x = 1,182,041.83 × 308,399.78
  4. Step 4: Simplify right side
    787,829.36x = 364,541,432,870.59
  5. Step 5: Solve for x
    x = 364,541,432,870.59/787,829.36
  6. Step 6: Final answer
    x = 462,716.23

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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.