Home / 652,123.41-899,939.50-393,964.46

Finding the Fourth Proportional to 652,123.41, 899,939.50 and 393,964.46

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Solution

The fourth proportional to 652,123.41, 899,939.50 and 393,964.46 is: 543,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,123.41 : 899,939.50 = 393,964.46 : x
  2. Step 2: Convert to fraction form
    652,123.41/899,939.50 = 393,964.46/x
  3. Step 3: Cross multiply
    652,123.41x = 899,939.50 × 393,964.46
  4. Step 4: Simplify right side
    652,123.41x = 354,544,177,040.34
  5. Step 5: Solve for x
    x = 354,544,177,040.34/652,123.41
  6. Step 6: Final answer
    x = 543,676.51

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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.