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Finding the Fourth Proportional to 654,515.56, 903,313.73 and 368,033.59

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Solution

The fourth proportional to 654,515.56, 903,313.73 and 368,033.59 is: 507,932.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,515.56 : 903,313.73 = 368,033.59 : x
  2. Step 2: Convert to fraction form
    654,515.56/903,313.73 = 368,033.59/x
  3. Step 3: Cross multiply
    654,515.56x = 903,313.73 × 368,033.59
  4. Step 4: Simplify right side
    654,515.56x = 332,449,794,948.19
  5. Step 5: Solve for x
    x = 332,449,794,948.19/654,515.56
  6. Step 6: Final answer
    x = 507,932.61

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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.