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Finding the Fourth Proportional to 482,676.80, 724,015.20 and 305,967.20

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Solution

The fourth proportional to 482,676.80, 724,015.20 and 305,967.20 is: 458,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,676.80 : 724,015.20 = 305,967.20 : x
  2. Step 2: Convert to fraction form
    482,676.80/724,015.20 = 305,967.20/x
  3. Step 3: Cross multiply
    482,676.80x = 724,015.20 × 305,967.20
  4. Step 4: Simplify right side
    482,676.80x = 221,524,903,501.44
  5. Step 5: Solve for x
    x = 221,524,903,501.44/482,676.80
  6. Step 6: Final answer
    x = 458,950.80

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1.5x scale

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.