Home / 782,513.01-1,079,879.15-455,817.63

Finding the Fourth Proportional to 782,513.01, 1,079,879.15 and 455,817.63

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Solution

The fourth proportional to 782,513.01, 1,079,879.15 and 455,817.63 is: 629,034.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,513.01 : 1,079,879.15 = 455,817.63 : x
  2. Step 2: Convert to fraction form
    782,513.01/1,079,879.15 = 455,817.63/x
  3. Step 3: Cross multiply
    782,513.01x = 1,079,879.15 × 455,817.63
  4. Step 4: Simplify right side
    782,513.01x = 492,227,954,839.42
  5. Step 5: Solve for x
    x = 492,227,954,839.42/782,513.01
  6. Step 6: Final answer
    x = 629,034.85

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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.