Home / 808,821.82-1,213,261.89-303,331.60

Finding the Fourth Proportional to 808,821.82, 1,213,261.89 and 303,331.60

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Solution

The fourth proportional to 808,821.82, 1,213,261.89 and 303,331.60 is: 455,008.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,821.82 : 1,213,261.89 = 303,331.60 : x
  2. Step 2: Convert to fraction form
    808,821.82/1,213,261.89 = 303,331.60/x
  3. Step 3: Cross multiply
    808,821.82x = 1,213,261.89 × 303,331.60
  4. Step 4: Simplify right side
    808,821.82x = 368,020,670,312.72
  5. Step 5: Solve for x
    x = 368,020,670,312.72/808,821.82
  6. Step 6: Final answer
    x = 455,008.34

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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.