Home / 645,455.79-968,172.75-224,720.73

Finding the Fourth Proportional to 645,455.79, 968,172.75 and 224,720.73

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Solution

The fourth proportional to 645,455.79, 968,172.75 and 224,720.73 is: 337,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,455.79 : 968,172.75 = 224,720.73 : x
  2. Step 2: Convert to fraction form
    645,455.79/968,172.75 = 224,720.73/x
  3. Step 3: Cross multiply
    645,455.79x = 968,172.75 × 224,720.73
  4. Step 4: Simplify right side
    645,455.79x = 217,568,487,146.11
  5. Step 5: Solve for x
    x = 217,568,487,146.11/645,455.79
  6. Step 6: Final answer
    x = 337,077.29

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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.