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Finding the Fourth Proportional to 550,273.12, 759,367.92 and 308,555.44

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Solution

The fourth proportional to 550,273.12, 759,367.92 and 308,555.44 is: 425,801.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,273.12 : 759,367.92 = 308,555.44 : x
  2. Step 2: Convert to fraction form
    550,273.12/759,367.92 = 308,555.44/x
  3. Step 3: Cross multiply
    550,273.12x = 759,367.92 × 308,555.44
  4. Step 4: Simplify right side
    550,273.12x = 234,307,102,677.49
  5. Step 5: Solve for x
    x = 234,307,102,677.49/550,273.12
  6. Step 6: Final answer
    x = 425,801.47

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1.5x scale

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.