Home / 693,146.32-1,039,664.77-219,835.78

Finding the Fourth Proportional to 693,146.32, 1,039,664.77 and 219,835.78

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Solution

The fourth proportional to 693,146.32, 1,039,664.77 and 219,835.78 is: 329,736.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,146.32 : 1,039,664.77 = 219,835.78 : x
  2. Step 2: Convert to fraction form
    693,146.32/1,039,664.77 = 219,835.78/x
  3. Step 3: Cross multiply
    693,146.32x = 1,039,664.77 × 219,835.78
  4. Step 4: Simplify right side
    693,146.32x = 228,555,512,502.72
  5. Step 5: Solve for x
    x = 228,555,512,502.72/693,146.32
  6. Step 6: Final answer
    x = 329,736.32

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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.