Home / 379,922.40-524,739.06-303,705.45

Finding the Fourth Proportional to 379,922.40, 524,739.06 and 303,705.45

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Solution

The fourth proportional to 379,922.40, 524,739.06 and 303,705.45 is: 419,470.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,922.40 : 524,739.06 = 303,705.45 : x
  2. Step 2: Convert to fraction form
    379,922.40/524,739.06 = 303,705.45/x
  3. Step 3: Cross multiply
    379,922.40x = 524,739.06 × 303,705.45
  4. Step 4: Simplify right side
    379,922.40x = 159,366,112,349.88
  5. Step 5: Solve for x
    x = 159,366,112,349.88/379,922.40
  6. Step 6: Final answer
    x = 419,470.17

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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.