Home / 744,039.82-1,026,396.38-486,067.78

Finding the Fourth Proportional to 744,039.82, 1,026,396.38 and 486,067.78

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Solution

The fourth proportional to 744,039.82, 1,026,396.38 and 486,067.78 is: 670,526.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,039.82 : 1,026,396.38 = 486,067.78 : x
  2. Step 2: Convert to fraction form
    744,039.82/1,026,396.38 = 486,067.78/x
  3. Step 3: Cross multiply
    744,039.82x = 1,026,396.38 × 486,067.78
  4. Step 4: Simplify right side
    744,039.82x = 498,898,209,826.64
  5. Step 5: Solve for x
    x = 498,898,209,826.64/744,039.82
  6. Step 6: Final answer
    x = 670,526.22

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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.