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Finding the Fourth Proportional to 495,056.97, 683,121.87 and 277,235.28

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Solution

The fourth proportional to 495,056.97, 683,121.87 and 277,235.28 is: 382,552.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,056.97 : 683,121.87 = 277,235.28 : x
  2. Step 2: Convert to fraction form
    495,056.97/683,121.87 = 277,235.28/x
  3. Step 3: Cross multiply
    495,056.97x = 683,121.87 × 277,235.28
  4. Step 4: Simplify right side
    495,056.97x = 189,385,482,903.57
  5. Step 5: Solve for x
    x = 189,385,482,903.57/495,056.97
  6. Step 6: Final answer
    x = 382,552.91

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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.