Home / 739,963.36-1,021,149.41-400,431.61

Finding the Fourth Proportional to 739,963.36, 1,021,149.41 and 400,431.61

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Solution

The fourth proportional to 739,963.36, 1,021,149.41 and 400,431.61 is: 552,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,963.36 : 1,021,149.41 = 400,431.61 : x
  2. Step 2: Convert to fraction form
    739,963.36/1,021,149.41 = 400,431.61/x
  3. Step 3: Cross multiply
    739,963.36x = 1,021,149.41 × 400,431.61
  4. Step 4: Simplify right side
    739,963.36x = 408,900,497,191.10
  5. Step 5: Solve for x
    x = 408,900,497,191.10/739,963.36
  6. Step 6: Final answer
    x = 552,595.60

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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.