Home / 739,977-1,021,175.64-400,452.54

Finding the Fourth Proportional to 739,977, 1,021,175.64 and 400,452.54

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Solution

The fourth proportional to 739,977, 1,021,175.64 and 400,452.54 is: 552,628.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,977 : 1,021,175.64 = 400,452.54 : x
  2. Step 2: Convert to fraction form
    739,977/1,021,175.64 = 400,452.54/x
  3. Step 3: Cross multiply
    739,977x = 1,021,175.64 × 400,452.54
  4. Step 4: Simplify right side
    739,977x = 408,932,378,824.13
  5. Step 5: Solve for x
    x = 408,932,378,824.13/739,977
  6. Step 6: Final answer
    x = 552,628.50

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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.