Home / 626,731.72-864,876.36-340,249.30

Finding the Fourth Proportional to 626,731.72, 864,876.36 and 340,249.30

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Solution

The fourth proportional to 626,731.72, 864,876.36 and 340,249.30 is: 469,536.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,731.72 : 864,876.36 = 340,249.30 : x
  2. Step 2: Convert to fraction form
    626,731.72/864,876.36 = 340,249.30/x
  3. Step 3: Cross multiply
    626,731.72x = 864,876.36 × 340,249.30
  4. Step 4: Simplify right side
    626,731.72x = 294,273,576,076.55
  5. Step 5: Solve for x
    x = 294,273,576,076.55/626,731.72
  6. Step 6: Final answer
    x = 469,536.75

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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.