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Finding the Fourth Proportional to 966,647.70, 1,450,489.95 and 405,738.90

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Solution

The fourth proportional to 966,647.70, 1,450,489.95 and 405,738.90 is: 608,825.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,647.70 : 1,450,489.95 = 405,738.90 : x
  2. Step 2: Convert to fraction form
    966,647.70/1,450,489.95 = 405,738.90/x
  3. Step 3: Cross multiply
    966,647.70x = 1,450,489.95 × 405,738.90
  4. Step 4: Simplify right side
    966,647.70x = 588,520,196,774.06
  5. Step 5: Solve for x
    x = 588,520,196,774.06/966,647.70
  6. Step 6: Final answer
    x = 608,825.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.