Home / 725,690.95-1,088,539.90-220,256.31

Finding the Fourth Proportional to 725,690.95, 1,088,539.90 and 220,256.31

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Solution

The fourth proportional to 725,690.95, 1,088,539.90 and 220,256.31 is: 330,385.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,690.95 : 1,088,539.90 = 220,256.31 : x
  2. Step 2: Convert to fraction form
    725,690.95/1,088,539.90 = 220,256.31/x
  3. Step 3: Cross multiply
    725,690.95x = 1,088,539.90 × 220,256.31
  4. Step 4: Simplify right side
    725,690.95x = 239,757,780,560.49
  5. Step 5: Solve for x
    x = 239,757,780,560.49/725,690.95
  6. Step 6: Final answer
    x = 330,385.52

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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.