Home / 990,596.96-1,485,922.08-280,551.68

Finding the Fourth Proportional to 990,596.96, 1,485,922.08 and 280,551.68

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Solution

The fourth proportional to 990,596.96, 1,485,922.08 and 280,551.68 is: 420,835.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,596.96 : 1,485,922.08 = 280,551.68 : x
  2. Step 2: Convert to fraction form
    990,596.96/1,485,922.08 = 280,551.68/x
  3. Step 3: Cross multiply
    990,596.96x = 1,485,922.08 × 280,551.68
  4. Step 4: Simplify right side
    990,596.96x = 416,877,935,893.09
  5. Step 5: Solve for x
    x = 416,877,935,893.09/990,596.96
  6. Step 6: Final answer
    x = 420,835.06

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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.