Home / 645,122.57-968,057.01-265,972.64

Finding the Fourth Proportional to 645,122.57, 968,057.01 and 265,972.64

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Solution

The fourth proportional to 645,122.57, 968,057.01 and 265,972.64 is: 399,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,122.57 : 968,057.01 = 265,972.64 : x
  2. Step 2: Convert to fraction form
    645,122.57/968,057.01 = 265,972.64/x
  3. Step 3: Cross multiply
    645,122.57x = 968,057.01 × 265,972.64
  4. Step 4: Simplify right side
    645,122.57x = 257,476,673,779.92
  5. Step 5: Solve for x
    x = 257,476,673,779.92/645,122.57
  6. Step 6: Final answer
    x = 399,112.80

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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.