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Finding the Fourth Proportional to 665,896.72, 998,818.60 and 366,970

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Solution

The fourth proportional to 665,896.72, 998,818.60 and 366,970 is: 550,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,896.72 : 998,818.60 = 366,970 : x
  2. Step 2: Convert to fraction form
    665,896.72/998,818.60 = 366,970/x
  3. Step 3: Cross multiply
    665,896.72x = 998,818.60 × 366,970
  4. Step 4: Simplify right side
    665,896.72x = 366,536,461,642
  5. Step 5: Solve for x
    x = 366,536,461,642/665,896.72
  6. Step 6: Final answer
    x = 550,440.41

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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.