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Finding the Fourth Proportional to 620,234.52, 855,923.64 and 348,302.64

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Solution

The fourth proportional to 620,234.52, 855,923.64 and 348,302.64 is: 480,657.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,234.52 : 855,923.64 = 348,302.64 : x
  2. Step 2: Convert to fraction form
    620,234.52/855,923.64 = 348,302.64/x
  3. Step 3: Cross multiply
    620,234.52x = 855,923.64 × 348,302.64
  4. Step 4: Simplify right side
    620,234.52x = 298,120,463,450.41
  5. Step 5: Solve for x
    x = 298,120,463,450.41/620,234.52
  6. Step 6: Final answer
    x = 480,657.64

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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.