Home / 791,636.12-1,187,004.31-311,603.75

Finding the Fourth Proportional to 791,636.12, 1,187,004.31 and 311,603.75

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Solution

The fourth proportional to 791,636.12, 1,187,004.31 and 311,603.75 is: 467,228.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,636.12 : 1,187,004.31 = 311,603.75 : x
  2. Step 2: Convert to fraction form
    791,636.12/1,187,004.31 = 311,603.75/x
  3. Step 3: Cross multiply
    791,636.12x = 1,187,004.31 × 311,603.75
  4. Step 4: Simplify right side
    791,636.12x = 369,874,994,262.16
  5. Step 5: Solve for x
    x = 369,874,994,262.16/791,636.12
  6. Step 6: Final answer
    x = 467,228.55

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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.