Home / 641,077.92-961,680.96-220,298.40

Finding the Fourth Proportional to 641,077.92, 961,680.96 and 220,298.40

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Solution

The fourth proportional to 641,077.92, 961,680.96 and 220,298.40 is: 330,469.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,077.92 : 961,680.96 = 220,298.40 : x
  2. Step 2: Convert to fraction form
    641,077.92/961,680.96 = 220,298.40/x
  3. Step 3: Cross multiply
    641,077.92x = 961,680.96 × 220,298.40
  4. Step 4: Simplify right side
    641,077.92x = 211,856,776,798.46
  5. Step 5: Solve for x
    x = 211,856,776,798.46/641,077.92
  6. Step 6: Final answer
    x = 330,469.62

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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.