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Finding the Fourth Proportional to 550,866.06, 760,208.76 and 309,167.01

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Solution

The fourth proportional to 550,866.06, 760,208.76 and 309,167.01 is: 426,658.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,866.06 : 760,208.76 = 309,167.01 : x
  2. Step 2: Convert to fraction form
    550,866.06/760,208.76 = 309,167.01/x
  3. Step 3: Cross multiply
    550,866.06x = 760,208.76 × 309,167.01
  4. Step 4: Simplify right side
    550,866.06x = 235,031,469,305.01
  5. Step 5: Solve for x
    x = 235,031,469,305.01/550,866.06
  6. Step 6: Final answer
    x = 426,658.11

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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.