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Finding the Fourth Proportional to 621,662.31, 857,895.30 and 367,029.90

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Solution

The fourth proportional to 621,662.31, 857,895.30 and 367,029.90 is: 506,502.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,662.31 : 857,895.30 = 367,029.90 : x
  2. Step 2: Convert to fraction form
    621,662.31/857,895.30 = 367,029.90/x
  3. Step 3: Cross multiply
    621,662.31x = 857,895.30 × 367,029.90
  4. Step 4: Simplify right side
    621,662.31x = 314,873,226,169.47
  5. Step 5: Solve for x
    x = 314,873,226,169.47/621,662.31
  6. Step 6: Final answer
    x = 506,502.04

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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.