Home / 694,983.90-959,070.42-389,062.78

Finding the Fourth Proportional to 694,983.90, 959,070.42 and 389,062.78

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Solution

The fourth proportional to 694,983.90, 959,070.42 and 389,062.78 is: 536,902.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,983.90 : 959,070.42 = 389,062.78 : x
  2. Step 2: Convert to fraction form
    694,983.90/959,070.42 = 389,062.78/x
  3. Step 3: Cross multiply
    694,983.90x = 959,070.42 × 389,062.78
  4. Step 4: Simplify right side
    694,983.90x = 373,138,603,820.97
  5. Step 5: Solve for x
    x = 373,138,603,820.97/694,983.90
  6. Step 6: Final answer
    x = 536,902.52

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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.