Home / 432,458.16-648,687.20-221,961.84

Finding the Fourth Proportional to 432,458.16, 648,687.20 and 221,961.84

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Solution

The fourth proportional to 432,458.16, 648,687.20 and 221,961.84 is: 332,942.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,458.16 : 648,687.20 = 221,961.84 : x
  2. Step 2: Convert to fraction form
    432,458.16/648,687.20 = 221,961.84/x
  3. Step 3: Cross multiply
    432,458.16x = 648,687.20 × 221,961.84
  4. Step 4: Simplify right side
    432,458.16x = 143,983,804,496.45
  5. Step 5: Solve for x
    x = 143,983,804,496.45/432,458.16
  6. Step 6: Final answer
    x = 332,942.74

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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.