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Finding the Fourth Proportional to 385,025.31, 574,717.84 and 339,574.39

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Solution

The fourth proportional to 385,025.31, 574,717.84 and 339,574.39 is: 506,874.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,025.31 : 574,717.84 = 339,574.39 : x
  2. Step 2: Convert to fraction form
    385,025.31/574,717.84 = 339,574.39/x
  3. Step 3: Cross multiply
    385,025.31x = 574,717.84 × 339,574.39
  4. Step 4: Simplify right side
    385,025.31x = 195,159,458,242.25
  5. Step 5: Solve for x
    x = 195,159,458,242.25/385,025.31
  6. Step 6: Final answer
    x = 506,874.36

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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.