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Finding the Fourth Proportional to 495,033.36, 683,028.94 and 280,173.42

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Solution

The fourth proportional to 495,033.36, 683,028.94 and 280,173.42 is: 386,573.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,033.36 : 683,028.94 = 280,173.42 : x
  2. Step 2: Convert to fraction form
    495,033.36/683,028.94 = 280,173.42/x
  3. Step 3: Cross multiply
    495,033.36x = 683,028.94 × 280,173.42
  4. Step 4: Simplify right side
    495,033.36x = 191,366,554,078.78
  5. Step 5: Solve for x
    x = 191,366,554,078.78/495,033.36
  6. Step 6: Final answer
    x = 386,573.05

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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.