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Finding the Fourth Proportional to 550,908.24, 760,327.55 and 309,204.03

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Solution

The fourth proportional to 550,908.24, 760,327.55 and 309,204.03 is: 426,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,908.24 : 760,327.55 = 309,204.03 : x
  2. Step 2: Convert to fraction form
    550,908.24/760,327.55 = 309,204.03/x
  3. Step 3: Cross multiply
    550,908.24x = 760,327.55 × 309,204.03
  4. Step 4: Simplify right side
    550,908.24x = 235,096,345,044.75
  5. Step 5: Solve for x
    x = 235,096,345,044.75/550,908.24
  6. Step 6: Final answer
    x = 426,743.20

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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.