Home / 744,638.86-1,027,606.09-405,109.54

Finding the Fourth Proportional to 744,638.86, 1,027,606.09 and 405,109.54

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Solution

The fourth proportional to 744,638.86, 1,027,606.09 and 405,109.54 is: 559,053.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,638.86 : 1,027,606.09 = 405,109.54 : x
  2. Step 2: Convert to fraction form
    744,638.86/1,027,606.09 = 405,109.54/x
  3. Step 3: Cross multiply
    744,638.86x = 1,027,606.09 × 405,109.54
  4. Step 4: Simplify right side
    744,638.86x = 416,293,030,421.10
  5. Step 5: Solve for x
    x = 416,293,030,421.10/744,638.86
  6. Step 6: Final answer
    x = 559,053.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.