Home / 744,340-1,027,189.20-404,815.54

Finding the Fourth Proportional to 744,340, 1,027,189.20 and 404,815.54

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Solution

The fourth proportional to 744,340, 1,027,189.20 and 404,815.54 is: 558,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,340 : 1,027,189.20 = 404,815.54 : x
  2. Step 2: Convert to fraction form
    744,340/1,027,189.20 = 404,815.54/x
  3. Step 3: Cross multiply
    744,340x = 1,027,189.20 × 404,815.54
  4. Step 4: Simplify right side
    744,340x = 415,822,150,680.17
  5. Step 5: Solve for x
    x = 415,822,150,680.17/744,340
  6. Step 6: Final answer
    x = 558,645.45

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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.