Home / 641,581.57-961,934.96-325,428.85

Finding the Fourth Proportional to 641,581.57, 961,934.96 and 325,428.85

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Solution

The fourth proportional to 641,581.57, 961,934.96 and 325,428.85 is: 487,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,581.57 : 961,934.96 = 325,428.85 : x
  2. Step 2: Convert to fraction form
    641,581.57/961,934.96 = 325,428.85/x
  3. Step 3: Cross multiply
    641,581.57x = 961,934.96 × 325,428.85
  4. Step 4: Simplify right side
    641,581.57x = 313,041,386,180.45
  5. Step 5: Solve for x
    x = 313,041,386,180.45/641,581.57
  6. Step 6: Final answer
    x = 487,921.41

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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.