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Finding the Fourth Proportional to 664,384.20, 996,284.70 and 264,892.20

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Solution

The fourth proportional to 664,384.20, 996,284.70 and 264,892.20 is: 397,222.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,384.20 : 996,284.70 = 264,892.20 : x
  2. Step 2: Convert to fraction form
    664,384.20/996,284.70 = 264,892.20/x
  3. Step 3: Cross multiply
    664,384.20x = 996,284.70 × 264,892.20
  4. Step 4: Simplify right side
    664,384.20x = 263,908,046,009.34
  5. Step 5: Solve for x
    x = 263,908,046,009.34/664,384.20
  6. Step 6: Final answer
    x = 397,222.04

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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.