Home / 386,380.46-576,756.38-357,888.03

Finding the Fourth Proportional to 386,380.46, 576,756.38 and 357,888.03

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Solution

The fourth proportional to 386,380.46, 576,756.38 and 357,888.03 is: 534,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,380.46 : 576,756.38 = 357,888.03 : x
  2. Step 2: Convert to fraction form
    386,380.46/576,756.38 = 357,888.03/x
  3. Step 3: Cross multiply
    386,380.46x = 576,756.38 × 357,888.03
  4. Step 4: Simplify right side
    386,380.46x = 206,414,202,838.69
  5. Step 5: Solve for x
    x = 206,414,202,838.69/386,380.46
  6. Step 6: Final answer
    x = 534,225.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.