Home / 744,753.60-1,027,743.36-405,222.72

Finding the Fourth Proportional to 744,753.60, 1,027,743.36 and 405,222.72

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Solution

The fourth proportional to 744,753.60, 1,027,743.36 and 405,222.72 is: 559,198.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,753.60 : 1,027,743.36 = 405,222.72 : x
  2. Step 2: Convert to fraction form
    744,753.60/1,027,743.36 = 405,222.72/x
  3. Step 3: Cross multiply
    744,753.60x = 1,027,743.36 × 405,222.72
  4. Step 4: Simplify right side
    744,753.60x = 416,464,959,801.14
  5. Step 5: Solve for x
    x = 416,464,959,801.14/744,753.60
  6. Step 6: Final answer
    x = 559,198.32

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1.5x scale

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.