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Finding the Fourth Proportional to 495,551.45, 683,698.39 and 277,728.35

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Solution

The fourth proportional to 495,551.45, 683,698.39 and 277,728.35 is: 383,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,551.45 : 683,698.39 = 277,728.35 : x
  2. Step 2: Convert to fraction form
    495,551.45/683,698.39 = 277,728.35/x
  3. Step 3: Cross multiply
    495,551.45x = 683,698.39 × 277,728.35
  4. Step 4: Simplify right side
    495,551.45x = 189,882,421,639.54
  5. Step 5: Solve for x
    x = 189,882,421,639.54/495,551.45
  6. Step 6: Final answer
    x = 383,173.98

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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.