Home / 389,345.25-536,809.62-324,907.32

Finding the Fourth Proportional to 389,345.25, 536,809.62 and 324,907.32

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Solution

The fourth proportional to 389,345.25, 536,809.62 and 324,907.32 is: 447,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,345.25 : 536,809.62 = 324,907.32 : x
  2. Step 2: Convert to fraction form
    389,345.25/536,809.62 = 324,907.32/x
  3. Step 3: Cross multiply
    389,345.25x = 536,809.62 × 324,907.32
  4. Step 4: Simplify right side
    389,345.25x = 174,413,374,984.42
  5. Step 5: Solve for x
    x = 174,413,374,984.42/389,345.25
  6. Step 6: Final answer
    x = 447,965.85

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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.