Home / 379,604.28-569,328.96-139,635.70

Finding the Fourth Proportional to 379,604.28, 569,328.96 and 139,635.70

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Solution

The fourth proportional to 379,604.28, 569,328.96 and 139,635.70 is: 209,425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,604.28 : 569,328.96 = 139,635.70 : x
  2. Step 2: Convert to fraction form
    379,604.28/569,328.96 = 139,635.70/x
  3. Step 3: Cross multiply
    379,604.28x = 569,328.96 × 139,635.70
  4. Step 4: Simplify right side
    379,604.28x = 79,498,649,283.19
  5. Step 5: Solve for x
    x = 79,498,649,283.19/379,604.28
  6. Step 6: Final answer
    x = 209,425.06

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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.