Home / 429,766.56-644,427.36-192,905.28

Finding the Fourth Proportional to 429,766.56, 644,427.36 and 192,905.28

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Solution

The fourth proportional to 429,766.56, 644,427.36 and 192,905.28 is: 289,258.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,766.56 : 644,427.36 = 192,905.28 : x
  2. Step 2: Convert to fraction form
    429,766.56/644,427.36 = 192,905.28/x
  3. Step 3: Cross multiply
    429,766.56x = 644,427.36 × 192,905.28
  4. Step 4: Simplify right side
    429,766.56x = 124,313,440,320.46
  5. Step 5: Solve for x
    x = 124,313,440,320.46/429,766.56
  6. Step 6: Final answer
    x = 289,258.06

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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.