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Finding the Fourth Proportional to 665,922.82, 919,063.38 and 375,594.01

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Solution

The fourth proportional to 665,922.82, 919,063.38 and 375,594.01 is: 518,370.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,922.82 : 919,063.38 = 375,594.01 : x
  2. Step 2: Convert to fraction form
    665,922.82/919,063.38 = 375,594.01/x
  3. Step 3: Cross multiply
    665,922.82x = 919,063.38 × 375,594.01
  4. Step 4: Simplify right side
    665,922.82x = 345,194,693,865.07
  5. Step 5: Solve for x
    x = 345,194,693,865.07/665,922.82
  6. Step 6: Final answer
    x = 518,370.43

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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.