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Finding the Fourth Proportional to 505,072.97, 697,004.76 and 275,632.07

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Solution

The fourth proportional to 505,072.97, 697,004.76 and 275,632.07 is: 380,374.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,072.97 : 697,004.76 = 275,632.07 : x
  2. Step 2: Convert to fraction form
    505,072.97/697,004.76 = 275,632.07/x
  3. Step 3: Cross multiply
    505,072.97x = 697,004.76 × 275,632.07
  4. Step 4: Simplify right side
    505,072.97x = 192,116,862,347.25
  5. Step 5: Solve for x
    x = 192,116,862,347.25/505,072.97
  6. Step 6: Final answer
    x = 380,374.47

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1.5x scale

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.