Home / 782,317.65-1,079,766.82-476,494.86

Finding the Fourth Proportional to 782,317.65, 1,079,766.82 and 476,494.86

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Solution

The fourth proportional to 782,317.65, 1,079,766.82 and 476,494.86 is: 657,665.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,317.65 : 1,079,766.82 = 476,494.86 : x
  2. Step 2: Convert to fraction form
    782,317.65/1,079,766.82 = 476,494.86/x
  3. Step 3: Cross multiply
    782,317.65x = 1,079,766.82 × 476,494.86
  4. Step 4: Simplify right side
    782,317.65x = 514,503,339,728.55
  5. Step 5: Solve for x
    x = 514,503,339,728.55/782,317.65
  6. Step 6: Final answer
    x = 657,665.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.