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Finding the Fourth Proportional to 605,433.90, 907,502.85 and 205,704.30

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Solution

The fourth proportional to 605,433.90, 907,502.85 and 205,704.30 is: 308,336.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,433.90 : 907,502.85 = 205,704.30 : x
  2. Step 2: Convert to fraction form
    605,433.90/907,502.85 = 205,704.30/x
  3. Step 3: Cross multiply
    605,433.90x = 907,502.85 × 205,704.30
  4. Step 4: Simplify right side
    605,433.90x = 186,677,238,507.26
  5. Step 5: Solve for x
    x = 186,677,238,507.26/605,433.90
  6. Step 6: Final answer
    x = 308,336.28

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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.