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Finding the Fourth Proportional to 550,665.20, 760,185.02 and 369,310.80

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Solution

The fourth proportional to 550,665.20, 760,185.02 and 369,310.80 is: 509,828.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,665.20 : 760,185.02 = 369,310.80 : x
  2. Step 2: Convert to fraction form
    550,665.20/760,185.02 = 369,310.80/x
  3. Step 3: Cross multiply
    550,665.20x = 760,185.02 × 369,310.80
  4. Step 4: Simplify right side
    550,665.20x = 280,744,537,884.22
  5. Step 5: Solve for x
    x = 280,744,537,884.22/550,665.20
  6. Step 6: Final answer
    x = 509,828.00

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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.