Home / 398,719.68-597,977.64-118,171.44

Finding the Fourth Proportional to 398,719.68, 597,977.64 and 118,171.44

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Solution

The fourth proportional to 398,719.68, 597,977.64 and 118,171.44 is: 177,226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,719.68 : 597,977.64 = 118,171.44 : x
  2. Step 2: Convert to fraction form
    398,719.68/597,977.64 = 118,171.44/x
  3. Step 3: Cross multiply
    398,719.68x = 597,977.64 × 118,171.44
  4. Step 4: Simplify right side
    398,719.68x = 70,663,878,806.60
  5. Step 5: Solve for x
    x = 70,663,878,806.60/398,719.68
  6. Step 6: Final answer
    x = 177,226.97

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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.