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Finding the Fourth Proportional to 1,992,612.80, 2,985,857.40 and 1,484,791.40

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Solution

The fourth proportional to 1,992,612.80, 2,985,857.40 and 1,484,791.40 is: 2,224,905.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,612.80 : 2,985,857.40 = 1,484,791.40 : x
  2. Step 2: Convert to fraction form
    1,992,612.80/2,985,857.40 = 1,484,791.40/x
  3. Step 3: Cross multiply
    1,992,612.80x = 2,985,857.40 × 1,484,791.40
  4. Step 4: Simplify right side
    1,992,612.80x = 4,433,375,389,146.36
  5. Step 5: Solve for x
    x = 4,433,375,389,146.36/1,992,612.80
  6. Step 6: Final answer
    x = 2,224,905.61

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.