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Finding the Fourth Proportional to 647,690.58, 893,577.42 and 375,608.34

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Solution

The fourth proportional to 647,690.58, 893,577.42 and 375,608.34 is: 518,202.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,690.58 : 893,577.42 = 375,608.34 : x
  2. Step 2: Convert to fraction form
    647,690.58/893,577.42 = 375,608.34/x
  3. Step 3: Cross multiply
    647,690.58x = 893,577.42 × 375,608.34
  4. Step 4: Simplify right side
    647,690.58x = 335,635,131,387.68
  5. Step 5: Solve for x
    x = 335,635,131,387.68/647,690.58
  6. Step 6: Final answer
    x = 518,202.89

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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.