Home / 558,538.12-770,759.58-303,890.32

Finding the Fourth Proportional to 558,538.12, 770,759.58 and 303,890.32

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Solution

The fourth proportional to 558,538.12, 770,759.58 and 303,890.32 is: 419,356.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,538.12 : 770,759.58 = 303,890.32 : x
  2. Step 2: Convert to fraction form
    558,538.12/770,759.58 = 303,890.32/x
  3. Step 3: Cross multiply
    558,538.12x = 770,759.58 × 303,890.32
  4. Step 4: Simplify right side
    558,538.12x = 234,226,375,409.27
  5. Step 5: Solve for x
    x = 234,226,375,409.27/558,538.12
  6. Step 6: Final answer
    x = 419,356.11

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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.