Home / 990,467.20-1,485,700.80-876,305.80

Finding the Fourth Proportional to 990,467.20, 1,485,700.80 and 876,305.80

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Solution

The fourth proportional to 990,467.20, 1,485,700.80 and 876,305.80 is: 1,314,458.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,467.20 : 1,485,700.80 = 876,305.80 : x
  2. Step 2: Convert to fraction form
    990,467.20/1,485,700.80 = 876,305.80/x
  3. Step 3: Cross multiply
    990,467.20x = 1,485,700.80 × 876,305.80
  4. Step 4: Simplify right side
    990,467.20x = 1,301,928,228,104.64
  5. Step 5: Solve for x
    x = 1,301,928,228,104.64/990,467.20
  6. Step 6: Final answer
    x = 1,314,458.70

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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.