Home / 744,835-1,027,863.66-405,297.40

Finding the Fourth Proportional to 744,835, 1,027,863.66 and 405,297.40

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Solution

The fourth proportional to 744,835, 1,027,863.66 and 405,297.40 is: 559,305.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,835 : 1,027,863.66 = 405,297.40 : x
  2. Step 2: Convert to fraction form
    744,835/1,027,863.66 = 405,297.40/x
  3. Step 3: Cross multiply
    744,835x = 1,027,863.66 × 405,297.40
  4. Step 4: Simplify right side
    744,835x = 416,590,468,952.48
  5. Step 5: Solve for x
    x = 416,590,468,952.48/744,835
  6. Step 6: Final answer
    x = 559,305.71

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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.