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Finding the Fourth Proportional to 461,384.62, 636,312.99 and 300,180.78

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Solution

The fourth proportional to 461,384.62, 636,312.99 and 300,180.78 is: 413,990.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,384.62 : 636,312.99 = 300,180.78 : x
  2. Step 2: Convert to fraction form
    461,384.62/636,312.99 = 300,180.78/x
  3. Step 3: Cross multiply
    461,384.62x = 636,312.99 × 300,180.78
  4. Step 4: Simplify right side
    461,384.62x = 191,008,929,662.33
  5. Step 5: Solve for x
    x = 191,008,929,662.33/461,384.62
  6. Step 6: Final answer
    x = 413,990.67

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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.