Home / 990,441.88-1,485,465.90-484,785.64

Finding the Fourth Proportional to 990,441.88, 1,485,465.90 and 484,785.64

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Solution

The fourth proportional to 990,441.88, 1,485,465.90 and 484,785.64 is: 727,082.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,441.88 : 1,485,465.90 = 484,785.64 : x
  2. Step 2: Convert to fraction form
    990,441.88/1,485,465.90 = 484,785.64/x
  3. Step 3: Cross multiply
    990,441.88x = 1,485,465.90 × 484,785.64
  4. Step 4: Simplify right side
    990,441.88x = 720,132,537,029.68
  5. Step 5: Solve for x
    x = 720,132,537,029.68/990,441.88
  6. Step 6: Final answer
    x = 727,082.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.