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Finding the Fourth Proportional to 622,315.08, 858,805.74 and 367,665.66

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Solution

The fourth proportional to 622,315.08, 858,805.74 and 367,665.66 is: 507,385.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,315.08 : 858,805.74 = 367,665.66 : x
  2. Step 2: Convert to fraction form
    622,315.08/858,805.74 = 367,665.66/x
  3. Step 3: Cross multiply
    622,315.08x = 858,805.74 × 367,665.66
  4. Step 4: Simplify right side
    622,315.08x = 315,753,379,208.89
  5. Step 5: Solve for x
    x = 315,753,379,208.89/622,315.08
  6. Step 6: Final answer
    x = 507,385.07

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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.