Home / 642,327.30-962,768.88-305,091.90

Finding the Fourth Proportional to 642,327.30, 962,768.88 and 305,091.90

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Solution

The fourth proportional to 642,327.30, 962,768.88 and 305,091.90 is: 457,294.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,327.30 : 962,768.88 = 305,091.90 : x
  2. Step 2: Convert to fraction form
    642,327.30/962,768.88 = 305,091.90/x
  3. Step 3: Cross multiply
    642,327.30x = 962,768.88 × 305,091.90
  4. Step 4: Simplify right side
    642,327.30x = 293,732,986,860.07
  5. Step 5: Solve for x
    x = 293,732,986,860.07/642,327.30
  6. Step 6: Final answer
    x = 457,294.88

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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.