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Finding the Fourth Proportional to 385,026.31, 574,719.33 and 339,575.39

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Solution

The fourth proportional to 385,026.31, 574,719.33 and 339,575.39 is: 506,875.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,026.31 : 574,719.33 = 339,575.39 : x
  2. Step 2: Convert to fraction form
    385,026.31/574,719.33 = 339,575.39/x
  3. Step 3: Cross multiply
    385,026.31x = 574,719.33 × 339,575.39
  4. Step 4: Simplify right side
    385,026.31x = 195,160,540,625.29
  5. Step 5: Solve for x
    x = 195,160,540,625.29/385,026.31
  6. Step 6: Final answer
    x = 506,875.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.