Home / 727,020.14-1,002,634.66-455,112.82

Finding the Fourth Proportional to 727,020.14, 1,002,634.66 and 455,112.82

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Solution

The fourth proportional to 727,020.14, 1,002,634.66 and 455,112.82 is: 627,646.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,020.14 : 1,002,634.66 = 455,112.82 : x
  2. Step 2: Convert to fraction form
    727,020.14/1,002,634.66 = 455,112.82/x
  3. Step 3: Cross multiply
    727,020.14x = 1,002,634.66 × 455,112.82
  4. Step 4: Simplify right side
    727,020.14x = 456,311,887,542.34
  5. Step 5: Solve for x
    x = 456,311,887,542.34/727,020.14
  6. Step 6: Final answer
    x = 627,646.83

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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.