Home / 775,400.88-1,069,895.13-453,048.69

Finding the Fourth Proportional to 775,400.88, 1,069,895.13 and 453,048.69

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Solution

The fourth proportional to 775,400.88, 1,069,895.13 and 453,048.69 is: 625,114.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,400.88 : 1,069,895.13 = 453,048.69 : x
  2. Step 2: Convert to fraction form
    775,400.88/1,069,895.13 = 453,048.69/x
  3. Step 3: Cross multiply
    775,400.88x = 1,069,895.13 × 453,048.69
  4. Step 4: Simplify right side
    775,400.88x = 484,714,591,945.45
  5. Step 5: Solve for x
    x = 484,714,591,945.45/775,400.88
  6. Step 6: Final answer
    x = 625,114.84

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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.