Home / 1,990,516.75-2,985,775.13-660,820.75

Finding the Fourth Proportional to 1,990,516.75, 2,985,775.13 and 660,820.75

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Solution

The fourth proportional to 1,990,516.75, 2,985,775.13 and 660,820.75 is: 991,231.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,516.75 : 2,985,775.13 = 660,820.75 : x
  2. Step 2: Convert to fraction form
    1,990,516.75/2,985,775.13 = 660,820.75/x
  3. Step 3: Cross multiply
    1,990,516.75x = 2,985,775.13 × 660,820.75
  4. Step 4: Simplify right side
    1,990,516.75x = 1,973,062,160,737.95
  5. Step 5: Solve for x
    x = 1,973,062,160,737.95/1,990,516.75
  6. Step 6: Final answer
    x = 991,231.13

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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.