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Finding the Fourth Proportional to 550,013.72, 759,054 and 308,296.35

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Solution

The fourth proportional to 550,013.72, 759,054 and 308,296.35 is: 425,468.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,013.72 : 759,054 = 308,296.35 : x
  2. Step 2: Convert to fraction form
    550,013.72/759,054 = 308,296.35/x
  3. Step 3: Cross multiply
    550,013.72x = 759,054 × 308,296.35
  4. Step 4: Simplify right side
    550,013.72x = 234,013,577,652.90
  5. Step 5: Solve for x
    x = 234,013,577,652.90/550,013.72
  6. Step 6: Final answer
    x = 425,468.62

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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.