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Finding the Fourth Proportional to 547,612.43, 820,303.22 and 446,769.86

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Solution

The fourth proportional to 547,612.43, 820,303.22 and 446,769.86 is: 669,244.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,612.43 : 820,303.22 = 446,769.86 : x
  2. Step 2: Convert to fraction form
    547,612.43/820,303.22 = 446,769.86/x
  3. Step 3: Cross multiply
    547,612.43x = 820,303.22 × 446,769.86
  4. Step 4: Simplify right side
    547,612.43x = 366,486,751,772.36
  5. Step 5: Solve for x
    x = 366,486,751,772.36/547,612.43
  6. Step 6: Final answer
    x = 669,244.77

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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.