Home / 641,590.57-961,948.41-325,437.85

Finding the Fourth Proportional to 641,590.57, 961,948.41 and 325,437.85

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Solution

The fourth proportional to 641,590.57, 961,948.41 and 325,437.85 is: 487,934.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,590.57 : 961,948.41 = 325,437.85 : x
  2. Step 2: Convert to fraction form
    641,590.57/961,948.41 = 325,437.85/x
  3. Step 3: Cross multiply
    641,590.57x = 961,948.41 × 325,437.85
  4. Step 4: Simplify right side
    641,590.57x = 313,054,422,361.32
  5. Step 5: Solve for x
    x = 313,054,422,361.32/641,590.57
  6. Step 6: Final answer
    x = 487,934.89

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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.