Home / 2,660,779.40-3,990,780.30-767,323.40

Finding the Fourth Proportional to 2,660,779.40, 3,990,780.30 and 767,323.40

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Solution

The fourth proportional to 2,660,779.40, 3,990,780.30 and 767,323.40 is: 1,150,872.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,779.40 : 3,990,780.30 = 767,323.40 : x
  2. Step 2: Convert to fraction form
    2,660,779.40/3,990,780.30 = 767,323.40/x
  3. Step 3: Cross multiply
    2,660,779.40x = 3,990,780.30 × 767,323.40
  4. Step 4: Simplify right side
    2,660,779.40x = 3,062,219,108,449.02
  5. Step 5: Solve for x
    x = 3,062,219,108,449.02/2,660,779.40
  6. Step 6: Final answer
    x = 1,150,872.98

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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.