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Finding the Fourth Proportional to 3,722,955.77, 5,583,768.89 and 990,518.88

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Solution

The fourth proportional to 3,722,955.77, 5,583,768.89 and 990,518.88 is: 1,485,601.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722,955.77 : 5,583,768.89 = 990,518.88 : x
  2. Step 2: Convert to fraction form
    3,722,955.77/5,583,768.89 = 990,518.88/x
  3. Step 3: Cross multiply
    3,722,955.77x = 5,583,768.89 × 990,518.88
  4. Step 4: Simplify right side
    3,722,955.77x = 5,530,828,509,577.94
  5. Step 5: Solve for x
    x = 5,530,828,509,577.94/3,722,955.77
  6. Step 6: Final answer
    x = 1,485,601.45

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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.