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Finding the Fourth Proportional to 558,535.77, 770,798.57 and 303,896.61

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Solution

The fourth proportional to 558,535.77, 770,798.57 and 303,896.61 is: 419,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,535.77 : 770,798.57 = 303,896.61 : x
  2. Step 2: Convert to fraction form
    558,535.77/770,798.57 = 303,896.61/x
  3. Step 3: Cross multiply
    558,535.77x = 770,798.57 × 303,896.61
  4. Step 4: Simplify right side
    558,535.77x = 234,243,070,896.37
  5. Step 5: Solve for x
    x = 234,243,070,896.37/558,535.77
  6. Step 6: Final answer
    x = 419,387.77

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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.