Home / 492,693.11-679,868.39-285,929.35

Finding the Fourth Proportional to 492,693.11, 679,868.39 and 285,929.35

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Solution

The fourth proportional to 492,693.11, 679,868.39 and 285,929.35 is: 394,554.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,693.11 : 679,868.39 = 285,929.35 : x
  2. Step 2: Convert to fraction form
    492,693.11/679,868.39 = 285,929.35/x
  3. Step 3: Cross multiply
    492,693.11x = 679,868.39 × 285,929.35
  4. Step 4: Simplify right side
    492,693.11x = 194,394,325,853.40
  5. Step 5: Solve for x
    x = 194,394,325,853.40/492,693.11
  6. Step 6: Final answer
    x = 394,554.58

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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.