Home / 3,121,981.80-4,683,102.30-992,005.80

Finding the Fourth Proportional to 3,121,981.80, 4,683,102.30 and 992,005.80

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Solution

The fourth proportional to 3,121,981.80, 4,683,102.30 and 992,005.80 is: 1,488,049.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,981.80 : 4,683,102.30 = 992,005.80 : x
  2. Step 2: Convert to fraction form
    3,121,981.80/4,683,102.30 = 992,005.80/x
  3. Step 3: Cross multiply
    3,121,981.80x = 4,683,102.30 × 992,005.80
  4. Step 4: Simplify right side
    3,121,981.80x = 4,645,664,643,593.34
  5. Step 5: Solve for x
    x = 4,645,664,643,593.34/3,121,981.80
  6. Step 6: Final answer
    x = 1,488,049.88

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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.