Home / 813,493.48-1,219,857.75-300,804.39

Finding the Fourth Proportional to 813,493.48, 1,219,857.75 and 300,804.39

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Solution

The fourth proportional to 813,493.48, 1,219,857.75 and 300,804.39 is: 451,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,493.48 : 1,219,857.75 = 300,804.39 : x
  2. Step 2: Convert to fraction form
    813,493.48/1,219,857.75 = 300,804.39/x
  3. Step 3: Cross multiply
    813,493.48x = 1,219,857.75 × 300,804.39
  4. Step 4: Simplify right side
    813,493.48x = 366,938,558,772.21
  5. Step 5: Solve for x
    x = 366,938,558,772.21/813,493.48
  6. Step 6: Final answer
    x = 451,065.15

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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.