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Finding the Fourth Proportional to 505,767.33, 698,007.15 and 276,359.49

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Solution

The fourth proportional to 505,767.33, 698,007.15 and 276,359.49 is: 381,402.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,767.33 : 698,007.15 = 276,359.49 : x
  2. Step 2: Convert to fraction form
    505,767.33/698,007.15 = 276,359.49/x
  3. Step 3: Cross multiply
    505,767.33x = 698,007.15 × 276,359.49
  4. Step 4: Simplify right side
    505,767.33x = 192,900,899,990.35
  5. Step 5: Solve for x
    x = 192,900,899,990.35/505,767.33
  6. Step 6: Final answer
    x = 381,402.45

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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.