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Finding the Fourth Proportional to 454,328.70, 680,909.85 and 276,647.10

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Solution

The fourth proportional to 454,328.70, 680,909.85 and 276,647.10 is: 414,615.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,328.70 : 680,909.85 = 276,647.10 : x
  2. Step 2: Convert to fraction form
    454,328.70/680,909.85 = 276,647.10/x
  3. Step 3: Cross multiply
    454,328.70x = 680,909.85 × 276,647.10
  4. Step 4: Simplify right side
    454,328.70x = 188,371,735,363.94
  5. Step 5: Solve for x
    x = 188,371,735,363.94/454,328.70
  6. Step 6: Final answer
    x = 414,615.53

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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.