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Finding the Fourth Proportional to 505,097.49, 697,012.59 and 275,648.97

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Solution

The fourth proportional to 505,097.49, 697,012.59 and 275,648.97 is: 380,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,097.49 : 697,012.59 = 275,648.97 : x
  2. Step 2: Convert to fraction form
    505,097.49/697,012.59 = 275,648.97/x
  3. Step 3: Cross multiply
    505,097.49x = 697,012.59 × 275,648.97
  4. Step 4: Simplify right side
    505,097.49x = 192,130,802,510.53
  5. Step 5: Solve for x
    x = 192,130,802,510.53/505,097.49
  6. Step 6: Final answer
    x = 380,383.60

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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.