Home / 646,285.40-969,870.94-225,561.28

Finding the Fourth Proportional to 646,285.40, 969,870.94 and 225,561.28

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Solution

The fourth proportional to 646,285.40, 969,870.94 and 225,561.28 is: 338,496.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,285.40 : 969,870.94 = 225,561.28 : x
  2. Step 2: Convert to fraction form
    646,285.40/969,870.94 = 225,561.28/x
  3. Step 3: Cross multiply
    646,285.40x = 969,870.94 × 225,561.28
  4. Step 4: Simplify right side
    646,285.40x = 218,765,330,661.20
  5. Step 5: Solve for x
    x = 218,765,330,661.20/646,285.40
  6. Step 6: Final answer
    x = 338,496.48

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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.