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Finding the Fourth Proportional to 395,925.59, 546,589.31 and 309,701.39

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Solution

The fourth proportional to 395,925.59, 546,589.31 and 309,701.39 is: 427,553.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,925.59 : 546,589.31 = 309,701.39 : x
  2. Step 2: Convert to fraction form
    395,925.59/546,589.31 = 309,701.39/x
  3. Step 3: Cross multiply
    395,925.59x = 546,589.31 × 309,701.39
  4. Step 4: Simplify right side
    395,925.59x = 169,279,464,784.69
  5. Step 5: Solve for x
    x = 169,279,464,784.69/395,925.59
  6. Step 6: Final answer
    x = 427,553.74

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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.