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Finding the Fourth Proportional to 605,268.80, 907,640.52 and 205,802.30

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Solution

The fourth proportional to 605,268.80, 907,640.52 and 205,802.30 is: 308,614.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,268.80 : 907,640.52 = 205,802.30 : x
  2. Step 2: Convert to fraction form
    605,268.80/907,640.52 = 205,802.30/x
  3. Step 3: Cross multiply
    605,268.80x = 907,640.52 × 205,802.30
  4. Step 4: Simplify right side
    605,268.80x = 186,794,506,589.20
  5. Step 5: Solve for x
    x = 186,794,506,589.20/605,268.80
  6. Step 6: Final answer
    x = 308,614.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.