Home / 432,785.80-648,660.30-222,315.40

Finding the Fourth Proportional to 432,785.80, 648,660.30 and 222,315.40

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Solution

The fourth proportional to 432,785.80, 648,660.30 and 222,315.40 is: 333,206.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,785.80 : 648,660.30 = 222,315.40 : x
  2. Step 2: Convert to fraction form
    432,785.80/648,660.30 = 222,315.40/x
  3. Step 3: Cross multiply
    432,785.80x = 648,660.30 × 222,315.40
  4. Step 4: Simplify right side
    432,785.80x = 144,207,174,058.62
  5. Step 5: Solve for x
    x = 144,207,174,058.62/432,785.80
  6. Step 6: Final answer
    x = 333,206.81

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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.