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Finding the Fourth Proportional to 377,410.86, 520,741.47 and 275,491.86

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Solution

The fourth proportional to 377,410.86, 520,741.47 and 275,491.86 is: 380,116.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,410.86 : 520,741.47 = 275,491.86 : x
  2. Step 2: Convert to fraction form
    377,410.86/520,741.47 = 275,491.86/x
  3. Step 3: Cross multiply
    377,410.86x = 520,741.47 × 275,491.86
  4. Step 4: Simplify right side
    377,410.86x = 143,460,036,149.43
  5. Step 5: Solve for x
    x = 143,460,036,149.43/377,410.86
  6. Step 6: Final answer
    x = 380,116.34

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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.