Home / 990,468.48-1,485,765.90-280,551.27

Finding the Fourth Proportional to 990,468.48, 1,485,765.90 and 280,551.27

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Solution

The fourth proportional to 990,468.48, 1,485,765.90 and 280,551.27 is: 420,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,468.48 : 1,485,765.90 = 280,551.27 : x
  2. Step 2: Convert to fraction form
    990,468.48/1,485,765.90 = 280,551.27/x
  3. Step 3: Cross multiply
    990,468.48x = 1,485,765.90 × 280,551.27
  4. Step 4: Simplify right side
    990,468.48x = 416,833,510,167.69
  5. Step 5: Solve for x
    x = 416,833,510,167.69/990,468.48
  6. Step 6: Final answer
    x = 420,844.80

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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.