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Finding the Fourth Proportional to 505,426.82, 697,517.42 and 276,005.44

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Solution

The fourth proportional to 505,426.82, 697,517.42 and 276,005.44 is: 380,903.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,426.82 : 697,517.42 = 276,005.44 : x
  2. Step 2: Convert to fraction form
    505,426.82/697,517.42 = 276,005.44/x
  3. Step 3: Cross multiply
    505,426.82x = 697,517.42 × 276,005.44
  4. Step 4: Simplify right side
    505,426.82x = 192,518,602,414.77
  5. Step 5: Solve for x
    x = 192,518,602,414.77/505,426.82
  6. Step 6: Final answer
    x = 380,903.02

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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.