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Finding the Fourth Proportional to 1,997,835, 2,996,755.38 and 815,883

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Solution

The fourth proportional to 1,997,835, 2,996,755.38 and 815,883 is: 1,223,825.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997,835 : 2,996,755.38 = 815,883 : x
  2. Step 2: Convert to fraction form
    1,997,835/2,996,755.38 = 815,883/x
  3. Step 3: Cross multiply
    1,997,835x = 2,996,755.38 × 815,883
  4. Step 4: Simplify right side
    1,997,835x = 2,445,001,769,700.54
  5. Step 5: Solve for x
    x = 2,445,001,769,700.54/1,997,835
  6. Step 6: Final answer
    x = 1,223,825.68

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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.