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Finding the Fourth Proportional to 505,476.39, 697,569.18 and 276,035.26

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Solution

The fourth proportional to 505,476.39, 697,569.18 and 276,035.26 is: 380,935.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,476.39 : 697,569.18 = 276,035.26 : x
  2. Step 2: Convert to fraction form
    505,476.39/697,569.18 = 276,035.26/x
  3. Step 3: Cross multiply
    505,476.39x = 697,569.18 × 276,035.26
  4. Step 4: Simplify right side
    505,476.39x = 192,553,689,969.29
  5. Step 5: Solve for x
    x = 192,553,689,969.29/505,476.39
  6. Step 6: Final answer
    x = 380,935.08

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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.