Home / 775,539.88-1,070,245.05-453,520.55

Finding the Fourth Proportional to 775,539.88, 1,070,245.05 and 453,520.55

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Solution

The fourth proportional to 775,539.88, 1,070,245.05 and 453,520.55 is: 625,858.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,539.88 : 1,070,245.05 = 453,520.55 : x
  2. Step 2: Convert to fraction form
    775,539.88/1,070,245.05 = 453,520.55/x
  3. Step 3: Cross multiply
    775,539.88x = 1,070,245.05 × 453,520.55
  4. Step 4: Simplify right side
    775,539.88x = 485,378,123,710.78
  5. Step 5: Solve for x
    x = 485,378,123,710.78/775,539.88
  6. Step 6: Final answer
    x = 625,858.37

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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.