Home / 670,086.88-1,005,278.48-220,789.60

Finding the Fourth Proportional to 670,086.88, 1,005,278.48 and 220,789.60

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Solution

The fourth proportional to 670,086.88, 1,005,278.48 and 220,789.60 is: 331,233.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,086.88 : 1,005,278.48 = 220,789.60 : x
  2. Step 2: Convert to fraction form
    670,086.88/1,005,278.48 = 220,789.60/x
  3. Step 3: Cross multiply
    670,086.88x = 1,005,278.48 × 220,789.60
  4. Step 4: Simplify right side
    670,086.88x = 221,955,033,487.81
  5. Step 5: Solve for x
    x = 221,955,033,487.81/670,086.88
  6. Step 6: Final answer
    x = 331,233.22

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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.