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Finding the Fourth Proportional to 722,610.60, 997,160.28 and 395,858.88

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Solution

The fourth proportional to 722,610.60, 997,160.28 and 395,858.88 is: 546,262.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,610.60 : 997,160.28 = 395,858.88 : x
  2. Step 2: Convert to fraction form
    722,610.60/997,160.28 = 395,858.88/x
  3. Step 3: Cross multiply
    722,610.60x = 997,160.28 × 395,858.88
  4. Step 4: Simplify right side
    722,610.60x = 394,734,751,621.29
  5. Step 5: Solve for x
    x = 394,734,751,621.29/722,610.60
  6. Step 6: Final answer
    x = 546,262.06

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1.5x scale

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.