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Finding the Fourth Proportional to 495,078, 683,219.88 and 268,722.96

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Solution

The fourth proportional to 495,078, 683,219.88 and 268,722.96 is: 370,844.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,078 : 683,219.88 = 268,722.96 : x
  2. Step 2: Convert to fraction form
    495,078/683,219.88 = 268,722.96/x
  3. Step 3: Cross multiply
    495,078x = 683,219.88 × 268,722.96
  4. Step 4: Simplify right side
    495,078x = 183,596,868,484.45
  5. Step 5: Solve for x
    x = 183,596,868,484.45/495,078
  6. Step 6: Final answer
    x = 370,844.33

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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.