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Finding the Fourth Proportional to 1,807,700.96, 2,494,626.36 and 991,910

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Solution

The fourth proportional to 1,807,700.96, 2,494,626.36 and 991,910 is: 1,368,835.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807,700.96 : 2,494,626.36 = 991,910 : x
  2. Step 2: Convert to fraction form
    1,807,700.96/2,494,626.36 = 991,910/x
  3. Step 3: Cross multiply
    1,807,700.96x = 2,494,626.36 × 991,910
  4. Step 4: Simplify right side
    1,807,700.96x = 2,474,444,832,747.60
  5. Step 5: Solve for x
    x = 2,474,444,832,747.60/1,807,700.96
  6. Step 6: Final answer
    x = 1,368,835.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.