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Finding the Fourth Proportional to 505,401.69, 697,457.73 and 275,960.58

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Solution

The fourth proportional to 505,401.69, 697,457.73 and 275,960.58 is: 380,827.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,401.69 : 697,457.73 = 275,960.58 : x
  2. Step 2: Convert to fraction form
    505,401.69/697,457.73 = 275,960.58/x
  3. Step 3: Cross multiply
    505,401.69x = 697,457.73 × 275,960.58
  4. Step 4: Simplify right side
    505,401.69x = 192,470,839,696.28
  5. Step 5: Solve for x
    x = 192,470,839,696.28/505,401.69
  6. Step 6: Final answer
    x = 380,827.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.