Home / 398,530.28-597,380.20-173,830.38

Finding the Fourth Proportional to 398,530.28, 597,380.20 and 173,830.38

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Solution

The fourth proportional to 398,530.28, 597,380.20 and 173,830.38 is: 260,564.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,530.28 : 597,380.20 = 173,830.38 : x
  2. Step 2: Convert to fraction form
    398,530.28/597,380.20 = 173,830.38/x
  3. Step 3: Cross multiply
    398,530.28x = 597,380.20 × 173,830.38
  4. Step 4: Simplify right side
    398,530.28x = 103,842,827,170.48
  5. Step 5: Solve for x
    x = 103,842,827,170.48/398,530.28
  6. Step 6: Final answer
    x = 260,564.46

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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.