Home / 646,646.20-892,441.37-356,286.96

Finding the Fourth Proportional to 646,646.20, 892,441.37 and 356,286.96

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Solution

The fourth proportional to 646,646.20, 892,441.37 and 356,286.96 is: 491,714.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,646.20 : 892,441.37 = 356,286.96 : x
  2. Step 2: Convert to fraction form
    646,646.20/892,441.37 = 356,286.96/x
  3. Step 3: Cross multiply
    646,646.20x = 892,441.37 × 356,286.96
  4. Step 4: Simplify right side
    646,646.20x = 317,965,222,695.54
  5. Step 5: Solve for x
    x = 317,965,222,695.54/646,646.20
  6. Step 6: Final answer
    x = 491,714.36

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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.