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Finding the Fourth Proportional to 550,302.64, 759,456.60 and 305,367.52

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Solution

The fourth proportional to 550,302.64, 759,456.60 and 305,367.52 is: 421,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,302.64 : 759,456.60 = 305,367.52 : x
  2. Step 2: Convert to fraction form
    550,302.64/759,456.60 = 305,367.52/x
  3. Step 3: Cross multiply
    550,302.64x = 759,456.60 × 305,367.52
  4. Step 4: Simplify right side
    550,302.64x = 231,913,378,489.63
  5. Step 5: Solve for x
    x = 231,913,378,489.63/550,302.64
  6. Step 6: Final answer
    x = 421,428.80

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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.