Home / 739,977.24-1,021,171.77-400,445.49

Finding the Fourth Proportional to 739,977.24, 1,021,171.77 and 400,445.49

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Solution

The fourth proportional to 739,977.24, 1,021,171.77 and 400,445.49 is: 552,616.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,977.24 : 1,021,171.77 = 400,445.49 : x
  2. Step 2: Convert to fraction form
    739,977.24/1,021,171.77 = 400,445.49/x
  3. Step 3: Cross multiply
    739,977.24x = 1,021,171.77 × 400,445.49
  4. Step 4: Simplify right side
    739,977.24x = 408,923,629,811.82
  5. Step 5: Solve for x
    x = 408,923,629,811.82/739,977.24
  6. Step 6: Final answer
    x = 552,616.50

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1.5x scale

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.