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Finding the Fourth Proportional to 489,092.45, 683,329.75 and 489,092.45

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Solution

The fourth proportional to 489,092.45, 683,329.75 and 489,092.45 is: 683,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,092.45 : 683,329.75 = 489,092.45 : x
  2. Step 2: Convert to fraction form
    489,092.45/683,329.75 = 489,092.45/x
  3. Step 3: Cross multiply
    489,092.45x = 683,329.75 × 489,092.45
  4. Step 4: Simplify right side
    489,092.45x = 334,211,421,585.39
  5. Step 5: Solve for x
    x = 334,211,421,585.39/489,092.45
  6. Step 6: Final answer
    x = 683,329.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.