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Finding the Fourth Proportional to 654,806.30, 903,533.54 and 368,396.78

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Solution

The fourth proportional to 654,806.30, 903,533.54 and 368,396.78 is: 508,331.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,806.30 : 903,533.54 = 368,396.78 : x
  2. Step 2: Convert to fraction form
    654,806.30/903,533.54 = 368,396.78/x
  3. Step 3: Cross multiply
    654,806.30x = 903,533.54 × 368,396.78
  4. Step 4: Simplify right side
    654,806.30x = 332,858,846,758.00
  5. Step 5: Solve for x
    x = 332,858,846,758.00/654,806.30
  6. Step 6: Final answer
    x = 508,331.77

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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.