Home / 672,945.36-1,009,636.74-449,215.26

Finding the Fourth Proportional to 672,945.36, 1,009,636.74 and 449,215.26

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Solution

The fourth proportional to 672,945.36, 1,009,636.74 and 449,215.26 is: 673,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,945.36 : 1,009,636.74 = 449,215.26 : x
  2. Step 2: Convert to fraction form
    672,945.36/1,009,636.74 = 449,215.26/x
  3. Step 3: Cross multiply
    672,945.36x = 1,009,636.74 × 449,215.26
  4. Step 4: Simplify right side
    672,945.36x = 453,544,230,664.65
  5. Step 5: Solve for x
    x = 453,544,230,664.65/672,945.36
  6. Step 6: Final answer
    x = 673,968.88

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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.