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Finding the Fourth Proportional to 1,993,731.80, 2,991,035.10 and 983,337.80

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Solution

The fourth proportional to 1,993,731.80, 2,991,035.10 and 983,337.80 is: 1,475,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,731.80 : 2,991,035.10 = 983,337.80 : x
  2. Step 2: Convert to fraction form
    1,993,731.80/2,991,035.10 = 983,337.80/x
  3. Step 3: Cross multiply
    1,993,731.80x = 2,991,035.10 × 983,337.80
  4. Step 4: Simplify right side
    1,993,731.80x = 2,941,197,874,956.78
  5. Step 5: Solve for x
    x = 2,941,197,874,956.78/1,993,731.80
  6. Step 6: Final answer
    x = 1,475,222.43

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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.