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Finding the Fourth Proportional to 505,294.91, 697,317.53 and 275,861.86

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Solution

The fourth proportional to 505,294.91, 697,317.53 and 275,861.86 is: 380,695.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,294.91 : 697,317.53 = 275,861.86 : x
  2. Step 2: Convert to fraction form
    505,294.91/697,317.53 = 275,861.86/x
  3. Step 3: Cross multiply
    505,294.91x = 697,317.53 × 275,861.86
  4. Step 4: Simplify right side
    505,294.91x = 192,363,307,713.80
  5. Step 5: Solve for x
    x = 192,363,307,713.80/505,294.91
  6. Step 6: Final answer
    x = 380,695.12

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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.