Home / 695,708.20-960,031.62-393,922.60

Finding the Fourth Proportional to 695,708.20, 960,031.62 and 393,922.60

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Solution

The fourth proportional to 695,708.20, 960,031.62 and 393,922.60 is: 543,587.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,708.20 : 960,031.62 = 393,922.60 : x
  2. Step 2: Convert to fraction form
    695,708.20/960,031.62 = 393,922.60/x
  3. Step 3: Cross multiply
    695,708.20x = 960,031.62 × 393,922.60
  4. Step 4: Simplify right side
    695,708.20x = 378,178,151,832.61
  5. Step 5: Solve for x
    x = 378,178,151,832.61/695,708.20
  6. Step 6: Final answer
    x = 543,587.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.