Home / 432,385.46-648,976.86-219,302.90

Finding the Fourth Proportional to 432,385.46, 648,976.86 and 219,302.90

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Solution

The fourth proportional to 432,385.46, 648,976.86 and 219,302.90 is: 329,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,385.46 : 648,976.86 = 219,302.90 : x
  2. Step 2: Convert to fraction form
    432,385.46/648,976.86 = 219,302.90/x
  3. Step 3: Cross multiply
    432,385.46x = 648,976.86 × 219,302.90
  4. Step 4: Simplify right side
    432,385.46x = 142,322,507,430.89
  5. Step 5: Solve for x
    x = 142,322,507,430.89/432,385.46
  6. Step 6: Final answer
    x = 329,156.55

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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.