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Finding the Fourth Proportional to 397,605.64, 549,026.96 and 368,757.36

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Solution

The fourth proportional to 397,605.64, 549,026.96 and 368,757.36 is: 509,192.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,605.64 : 549,026.96 = 368,757.36 : x
  2. Step 2: Convert to fraction form
    397,605.64/549,026.96 = 368,757.36/x
  3. Step 3: Cross multiply
    397,605.64x = 549,026.96 × 368,757.36
  4. Step 4: Simplify right side
    397,605.64x = 202,457,732,338.43
  5. Step 5: Solve for x
    x = 202,457,732,338.43/397,605.64
  6. Step 6: Final answer
    x = 509,192.31

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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.