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Finding the Fourth Proportional to 620,004.24, 855,576.72 and 344,379.98

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Solution

The fourth proportional to 620,004.24, 855,576.72 and 344,379.98 is: 475,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,004.24 : 855,576.72 = 344,379.98 : x
  2. Step 2: Convert to fraction form
    620,004.24/855,576.72 = 344,379.98/x
  3. Step 3: Cross multiply
    620,004.24x = 855,576.72 × 344,379.98
  4. Step 4: Simplify right side
    620,004.24x = 294,643,493,722.07
  5. Step 5: Solve for x
    x = 294,643,493,722.07/620,004.24
  6. Step 6: Final answer
    x = 475,228.19

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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.