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Finding the Fourth Proportional to 482,853.78, 666,183.96 and 278,877.76

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Solution

The fourth proportional to 482,853.78, 666,183.96 and 278,877.76 is: 384,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,853.78 : 666,183.96 = 278,877.76 : x
  2. Step 2: Convert to fraction form
    482,853.78/666,183.96 = 278,877.76/x
  3. Step 3: Cross multiply
    482,853.78x = 666,183.96 × 278,877.76
  4. Step 4: Simplify right side
    482,853.78x = 185,783,888,847.27
  5. Step 5: Solve for x
    x = 185,783,888,847.27/482,853.78
  6. Step 6: Final answer
    x = 384,762.21

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1.5x scale

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.