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Finding the Fourth Proportional to 495,611.28, 683,946.84 and 269,256.72

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Solution

The fourth proportional to 495,611.28, 683,946.84 and 269,256.72 is: 371,576.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,611.28 : 683,946.84 = 269,256.72 : x
  2. Step 2: Convert to fraction form
    495,611.28/683,946.84 = 269,256.72/x
  3. Step 3: Cross multiply
    495,611.28x = 683,946.84 × 269,256.72
  4. Step 4: Simplify right side
    495,611.28x = 184,157,282,792.77
  5. Step 5: Solve for x
    x = 184,157,282,792.77/495,611.28
  6. Step 6: Final answer
    x = 371,576.05

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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.