Home / 641,590.32-961,948.04-325,437.60

Finding the Fourth Proportional to 641,590.32, 961,948.04 and 325,437.60

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Solution

The fourth proportional to 641,590.32, 961,948.04 and 325,437.60 is: 487,934.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,590.32 : 961,948.04 = 325,437.60 : x
  2. Step 2: Convert to fraction form
    641,590.32/961,948.04 = 325,437.60/x
  3. Step 3: Cross multiply
    641,590.32x = 961,948.04 × 325,437.60
  4. Step 4: Simplify right side
    641,590.32x = 313,054,059,835.12
  5. Step 5: Solve for x
    x = 313,054,059,835.12/641,590.32
  6. Step 6: Final answer
    x = 487,934.51

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1.5x scale

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.