Home / 646,331.56-969,940.22-225,607.40

Finding the Fourth Proportional to 646,331.56, 969,940.22 and 225,607.40

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Solution

The fourth proportional to 646,331.56, 969,940.22 and 225,607.40 is: 338,565.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,331.56 : 969,940.22 = 225,607.40 : x
  2. Step 2: Convert to fraction form
    646,331.56/969,940.22 = 225,607.40/x
  3. Step 3: Cross multiply
    646,331.56x = 969,940.22 × 225,607.40
  4. Step 4: Simplify right side
    646,331.56x = 218,825,691,189.63
  5. Step 5: Solve for x
    x = 218,825,691,189.63/646,331.56
  6. Step 6: Final answer
    x = 338,565.69

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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.