Home / 644,326.91-965,576.38-474,515.47

Finding the Fourth Proportional to 644,326.91, 965,576.38 and 474,515.47

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Solution

The fourth proportional to 644,326.91, 965,576.38 and 474,515.47 is: 711,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,326.91 : 965,576.38 = 474,515.47 : x
  2. Step 2: Convert to fraction form
    644,326.91/965,576.38 = 474,515.47/x
  3. Step 3: Cross multiply
    644,326.91x = 965,576.38 × 474,515.47
  4. Step 4: Simplify right side
    644,326.91x = 458,180,929,776.60
  5. Step 5: Solve for x
    x = 458,180,929,776.60/644,326.91
  6. Step 6: Final answer
    x = 711,100.10

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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.