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Finding the Fourth Proportional to 395,293.15, 593,530.23 and 389,388.25

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Solution

The fourth proportional to 395,293.15, 593,530.23 and 389,388.25 is: 584,664.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,293.15 : 593,530.23 = 389,388.25 : x
  2. Step 2: Convert to fraction form
    395,293.15/593,530.23 = 389,388.25/x
  3. Step 3: Cross multiply
    395,293.15x = 593,530.23 × 389,388.25
  4. Step 4: Simplify right side
    395,293.15x = 231,113,697,581.80
  5. Step 5: Solve for x
    x = 231,113,697,581.80/395,293.15
  6. Step 6: Final answer
    x = 584,664.06

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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.