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Finding the Fourth Proportional to 495,705.76, 684,078.12 and 269,351.28

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Solution

The fourth proportional to 495,705.76, 684,078.12 and 269,351.28 is: 371,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,705.76 : 684,078.12 = 269,351.28 : x
  2. Step 2: Convert to fraction form
    495,705.76/684,078.12 = 269,351.28/x
  3. Step 3: Cross multiply
    495,705.76x = 684,078.12 × 269,351.28
  4. Step 4: Simplify right side
    495,705.76x = 184,257,317,241.99
  5. Step 5: Solve for x
    x = 184,257,317,241.99/495,705.76
  6. Step 6: Final answer
    x = 371,707.03

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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.