Home / 1,090,121.64-1,635,401.16-379,959

Finding the Fourth Proportional to 1,090,121.64, 1,635,401.16 and 379,959

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Solution

The fourth proportional to 1,090,121.64, 1,635,401.16 and 379,959 is: 570,014.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,121.64 : 1,635,401.16 = 379,959 : x
  2. Step 2: Convert to fraction form
    1,090,121.64/1,635,401.16 = 379,959/x
  3. Step 3: Cross multiply
    1,090,121.64x = 1,635,401.16 × 379,959
  4. Step 4: Simplify right side
    1,090,121.64x = 621,385,389,352.44
  5. Step 5: Solve for x
    x = 621,385,389,352.44/1,090,121.64
  6. Step 6: Final answer
    x = 570,014.73

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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.