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Finding the Fourth Proportional to 695,649.45, 959,994.12 and 385,571.84

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Solution

The fourth proportional to 695,649.45, 959,994.12 and 385,571.84 is: 532,087.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,649.45 : 959,994.12 = 385,571.84 : x
  2. Step 2: Convert to fraction form
    695,649.45/959,994.12 = 385,571.84/x
  3. Step 3: Cross multiply
    695,649.45x = 959,994.12 × 385,571.84
  4. Step 4: Simplify right side
    695,649.45x = 370,146,695,883.51
  5. Step 5: Solve for x
    x = 370,146,695,883.51/695,649.45
  6. Step 6: Final answer
    x = 532,087.96

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1.5x scale

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.