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Finding the Fourth Proportional to 476,578.60, 657,693.78 and 275,374.60

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Solution

The fourth proportional to 476,578.60, 657,693.78 and 275,374.60 is: 380,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,578.60 : 657,693.78 = 275,374.60 : x
  2. Step 2: Convert to fraction form
    476,578.60/657,693.78 = 275,374.60/x
  3. Step 3: Cross multiply
    476,578.60x = 657,693.78 × 275,374.60
  4. Step 4: Simplify right side
    476,578.60x = 181,112,161,589.99
  5. Step 5: Solve for x
    x = 181,112,161,589.99/476,578.60
  6. Step 6: Final answer
    x = 380,025.80

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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.