Home / 370,747.76-556,121.26-320,679

Finding the Fourth Proportional to 370,747.76, 556,121.26 and 320,679

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Solution

The fourth proportional to 370,747.76, 556,121.26 and 320,679 is: 481,018.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,747.76 : 556,121.26 = 320,679 : x
  2. Step 2: Convert to fraction form
    370,747.76/556,121.26 = 320,679/x
  3. Step 3: Cross multiply
    370,747.76x = 556,121.26 × 320,679
  4. Step 4: Simplify right side
    370,747.76x = 178,336,409,535.54
  5. Step 5: Solve for x
    x = 178,336,409,535.54/370,747.76
  6. Step 6: Final answer
    x = 481,018.17

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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.