Home / 1,326,231.17-1,989,734.94-427,654.83

Finding the Fourth Proportional to 1,326,231.17, 1,989,734.94 and 427,654.83

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Solution

The fourth proportional to 1,326,231.17, 1,989,734.94 and 427,654.83 is: 641,607.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,231.17 : 1,989,734.94 = 427,654.83 : x
  2. Step 2: Convert to fraction form
    1,326,231.17/1,989,734.94 = 427,654.83/x
  3. Step 3: Cross multiply
    1,326,231.17x = 1,989,734.94 × 427,654.83
  4. Step 4: Simplify right side
    1,326,231.17x = 850,919,757,510.76
  5. Step 5: Solve for x
    x = 850,919,757,510.76/1,326,231.17
  6. Step 6: Final answer
    x = 641,607.42

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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.