Home / 645,803.28-968,180.04-225,374.40

Finding the Fourth Proportional to 645,803.28, 968,180.04 and 225,374.40

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Solution

The fourth proportional to 645,803.28, 968,180.04 and 225,374.40 is: 337,878.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,803.28 : 968,180.04 = 225,374.40 : x
  2. Step 2: Convert to fraction form
    645,803.28/968,180.04 = 225,374.40/x
  3. Step 3: Cross multiply
    645,803.28x = 968,180.04 × 225,374.40
  4. Step 4: Simplify right side
    645,803.28x = 218,202,995,606.98
  5. Step 5: Solve for x
    x = 218,202,995,606.98/645,803.28
  6. Step 6: Final answer
    x = 337,878.43

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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.