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Finding the Fourth Proportional to 395,653.60, 546,249.59 and 304,837.21

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Solution

The fourth proportional to 395,653.60, 546,249.59 and 304,837.21 is: 420,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,653.60 : 546,249.59 = 304,837.21 : x
  2. Step 2: Convert to fraction form
    395,653.60/546,249.59 = 304,837.21/x
  3. Step 3: Cross multiply
    395,653.60x = 546,249.59 × 304,837.21
  4. Step 4: Simplify right side
    395,653.60x = 166,517,200,979.24
  5. Step 5: Solve for x
    x = 166,517,200,979.24/395,653.60
  6. Step 6: Final answer
    x = 420,866.13

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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.