Home / 818,118.36-1,227,261.51-313,104.15

Finding the Fourth Proportional to 818,118.36, 1,227,261.51 and 313,104.15

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Solution

The fourth proportional to 818,118.36, 1,227,261.51 and 313,104.15 is: 469,688.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,118.36 : 1,227,261.51 = 313,104.15 : x
  2. Step 2: Convert to fraction form
    818,118.36/1,227,261.51 = 313,104.15/x
  3. Step 3: Cross multiply
    818,118.36x = 1,227,261.51 × 313,104.15
  4. Step 4: Simplify right side
    818,118.36x = 384,260,670,350.75
  5. Step 5: Solve for x
    x = 384,260,670,350.75/818,118.36
  6. Step 6: Final answer
    x = 469,688.36

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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.