Home / 775,619.82-1,070,224.92-431,410.86

Finding the Fourth Proportional to 775,619.82, 1,070,224.92 and 431,410.86

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Solution

The fourth proportional to 775,619.82, 1,070,224.92 and 431,410.86 is: 595,274.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,619.82 : 1,070,224.92 = 431,410.86 : x
  2. Step 2: Convert to fraction form
    775,619.82/1,070,224.92 = 431,410.86/x
  3. Step 3: Cross multiply
    775,619.82x = 1,070,224.92 × 431,410.86
  4. Step 4: Simplify right side
    775,619.82x = 461,706,653,130.63
  5. Step 5: Solve for x
    x = 461,706,653,130.63/775,619.82
  6. Step 6: Final answer
    x = 595,274.44

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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.