Home / 719,399.20-1,079,228.40-298,717.60

Finding the Fourth Proportional to 719,399.20, 1,079,228.40 and 298,717.60

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Solution

The fourth proportional to 719,399.20, 1,079,228.40 and 298,717.60 is: 448,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,399.20 : 1,079,228.40 = 298,717.60 : x
  2. Step 2: Convert to fraction form
    719,399.20/1,079,228.40 = 298,717.60/x
  3. Step 3: Cross multiply
    719,399.20x = 1,079,228.40 × 298,717.60
  4. Step 4: Simplify right side
    719,399.20x = 322,384,517,499.84
  5. Step 5: Solve for x
    x = 322,384,517,499.84/719,399.20
  6. Step 6: Final answer
    x = 448,130.21

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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.