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Finding the Fourth Proportional to 638,846.60, 881,606.43 and 366,932.03

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Solution

The fourth proportional to 638,846.60, 881,606.43 and 366,932.03 is: 506,365.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,846.60 : 881,606.43 = 366,932.03 : x
  2. Step 2: Convert to fraction form
    638,846.60/881,606.43 = 366,932.03/x
  3. Step 3: Cross multiply
    638,846.60x = 881,606.43 × 366,932.03
  4. Step 4: Simplify right side
    638,846.60x = 323,489,637,020.95
  5. Step 5: Solve for x
    x = 323,489,637,020.95/638,846.60
  6. Step 6: Final answer
    x = 506,365.12

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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.