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Finding the Fourth Proportional to 550,460.51, 759,636.88 and 321,175.43

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Solution

The fourth proportional to 550,460.51, 759,636.88 and 321,175.43 is: 443,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,460.51 : 759,636.88 = 321,175.43 : x
  2. Step 2: Convert to fraction form
    550,460.51/759,636.88 = 321,175.43/x
  3. Step 3: Cross multiply
    550,460.51x = 759,636.88 × 321,175.43
  4. Step 4: Simplify right side
    550,460.51x = 243,976,701,631.99
  5. Step 5: Solve for x
    x = 243,976,701,631.99/550,460.51
  6. Step 6: Final answer
    x = 443,222.90

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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.