Home / 646,663.10-968,996.82-409,507.55

Finding the Fourth Proportional to 646,663.10, 968,996.82 and 409,507.55

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Solution

The fourth proportional to 646,663.10, 968,996.82 and 409,507.55 is: 613,629.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,663.10 : 968,996.82 = 409,507.55 : x
  2. Step 2: Convert to fraction form
    646,663.10/968,996.82 = 409,507.55/x
  3. Step 3: Cross multiply
    646,663.10x = 968,996.82 × 409,507.55
  4. Step 4: Simplify right side
    646,663.10x = 396,811,514,040.40
  5. Step 5: Solve for x
    x = 396,811,514,040.40/646,663.10
  6. Step 6: Final answer
    x = 613,629.44

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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.