Home / 775,478.40-1,069,723.22-453,120.06

Finding the Fourth Proportional to 775,478.40, 1,069,723.22 and 453,120.06

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Solution

The fourth proportional to 775,478.40, 1,069,723.22 and 453,120.06 is: 625,050.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,478.40 : 1,069,723.22 = 453,120.06 : x
  2. Step 2: Convert to fraction form
    775,478.40/1,069,723.22 = 453,120.06/x
  3. Step 3: Cross multiply
    775,478.40x = 1,069,723.22 × 453,120.06
  4. Step 4: Simplify right side
    775,478.40x = 484,713,049,629.79
  5. Step 5: Solve for x
    x = 484,713,049,629.79/775,478.40
  6. Step 6: Final answer
    x = 625,050.36

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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.