Home / 725,079.60-1,087,619.40-192,682.80

Finding the Fourth Proportional to 725,079.60, 1,087,619.40 and 192,682.80

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Solution

The fourth proportional to 725,079.60, 1,087,619.40 and 192,682.80 is: 289,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,079.60 : 1,087,619.40 = 192,682.80 : x
  2. Step 2: Convert to fraction form
    725,079.60/1,087,619.40 = 192,682.80/x
  3. Step 3: Cross multiply
    725,079.60x = 1,087,619.40 × 192,682.80
  4. Step 4: Simplify right side
    725,079.60x = 209,565,551,326.32
  5. Step 5: Solve for x
    x = 209,565,551,326.32/725,079.60
  6. Step 6: Final answer
    x = 289,024.20

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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.