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Finding the Fourth Proportional to 637,232.97, 956,440.16 and 321,911.31

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Solution

The fourth proportional to 637,232.97, 956,440.16 and 321,911.31 is: 483,165.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,232.97 : 956,440.16 = 321,911.31 : x
  2. Step 2: Convert to fraction form
    637,232.97/956,440.16 = 321,911.31/x
  3. Step 3: Cross multiply
    637,232.97x = 956,440.16 × 321,911.31
  4. Step 4: Simplify right side
    637,232.97x = 307,888,903,232.65
  5. Step 5: Solve for x
    x = 307,888,903,232.65/637,232.97
  6. Step 6: Final answer
    x = 483,165.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.