Home / 1,990,519.75-2,985,779.63-660,823.75

Finding the Fourth Proportional to 1,990,519.75, 2,985,779.63 and 660,823.75

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Solution

The fourth proportional to 1,990,519.75, 2,985,779.63 and 660,823.75 is: 991,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,519.75 : 2,985,779.63 = 660,823.75 : x
  2. Step 2: Convert to fraction form
    1,990,519.75/2,985,779.63 = 660,823.75/x
  3. Step 3: Cross multiply
    1,990,519.75x = 2,985,779.63 × 660,823.75
  4. Step 4: Simplify right side
    1,990,519.75x = 1,973,074,091,770.21
  5. Step 5: Solve for x
    x = 1,973,074,091,770.21/1,990,519.75
  6. Step 6: Final answer
    x = 991,235.63

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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.