Home / 320,436.80-479,618.40-295,553.60

Finding the Fourth Proportional to 320,436.80, 479,618.40 and 295,553.60

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Solution

The fourth proportional to 320,436.80, 479,618.40 and 295,553.60 is: 442,374.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,436.80 : 479,618.40 = 295,553.60 : x
  2. Step 2: Convert to fraction form
    320,436.80/479,618.40 = 295,553.60/x
  3. Step 3: Cross multiply
    320,436.80x = 479,618.40 × 295,553.60
  4. Step 4: Simplify right side
    320,436.80x = 141,752,944,746.24
  5. Step 5: Solve for x
    x = 141,752,944,746.24/320,436.80
  6. Step 6: Final answer
    x = 442,374.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.