Home / 990,375.46-1,485,661.60-359,338.48

Finding the Fourth Proportional to 990,375.46, 1,485,661.60 and 359,338.48

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Solution

The fourth proportional to 990,375.46, 1,485,661.60 and 359,338.48 is: 539,043.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,375.46 : 1,485,661.60 = 359,338.48 : x
  2. Step 2: Convert to fraction form
    990,375.46/1,485,661.60 = 359,338.48/x
  3. Step 3: Cross multiply
    990,375.46x = 1,485,661.60 × 359,338.48
  4. Step 4: Simplify right side
    990,375.46x = 533,855,377,873.39
  5. Step 5: Solve for x
    x = 533,855,377,873.39/990,375.46
  6. Step 6: Final answer
    x = 539,043.42

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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.