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Finding the Fourth Proportional to 2,788,672.65, 4,182,922.58 and 794,128.65

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Solution

The fourth proportional to 2,788,672.65, 4,182,922.58 and 794,128.65 is: 1,191,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,672.65 : 4,182,922.58 = 794,128.65 : x
  2. Step 2: Convert to fraction form
    2,788,672.65/4,182,922.58 = 794,128.65/x
  3. Step 3: Cross multiply
    2,788,672.65x = 4,182,922.58 × 794,128.65
  4. Step 4: Simplify right side
    2,788,672.65x = 3,321,778,657,539.27
  5. Step 5: Solve for x
    x = 3,321,778,657,539.27/2,788,672.65
  6. Step 6: Final answer
    x = 1,191,168.37

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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.