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Finding the Fourth Proportional to 495,613.28, 683,949.60 and 269,258.72

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Solution

The fourth proportional to 495,613.28, 683,949.60 and 269,258.72 is: 371,578.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,613.28 : 683,949.60 = 269,258.72 : x
  2. Step 2: Convert to fraction form
    495,613.28/683,949.60 = 269,258.72/x
  3. Step 3: Cross multiply
    495,613.28x = 683,949.60 × 269,258.72
  4. Step 4: Simplify right side
    495,613.28x = 184,159,393,840.51
  5. Step 5: Solve for x
    x = 184,159,393,840.51/495,613.28
  6. Step 6: Final answer
    x = 371,578.81

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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.