Home / 3,107,862.96-4,661,787.94-978,133.20

Finding the Fourth Proportional to 3,107,862.96, 4,661,787.94 and 978,133.20

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Solution

The fourth proportional to 3,107,862.96, 4,661,787.94 and 978,133.20 is: 1,467,197.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107,862.96 : 4,661,787.94 = 978,133.20 : x
  2. Step 2: Convert to fraction form
    3,107,862.96/4,661,787.94 = 978,133.20/x
  3. Step 3: Cross multiply
    3,107,862.96x = 4,661,787.94 × 978,133.20
  4. Step 4: Simplify right side
    3,107,862.96x = 4,559,849,555,473.61
  5. Step 5: Solve for x
    x = 4,559,849,555,473.61/3,107,862.96
  6. Step 6: Final answer
    x = 1,467,197.75

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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.