Home / 331,829.40-497,744.10-313,858.20

Finding the Fourth Proportional to 331,829.40, 497,744.10 and 313,858.20

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Solution

The fourth proportional to 331,829.40, 497,744.10 and 313,858.20 is: 470,787.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,829.40 : 497,744.10 = 313,858.20 : x
  2. Step 2: Convert to fraction form
    331,829.40/497,744.10 = 313,858.20/x
  3. Step 3: Cross multiply
    331,829.40x = 497,744.10 × 313,858.20
  4. Step 4: Simplify right side
    331,829.40x = 156,221,067,286.62
  5. Step 5: Solve for x
    x = 156,221,067,286.62/331,829.40
  6. Step 6: Final answer
    x = 470,787.30

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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.