Home / 818,618.87-1,228,098.41-345,308.33

Finding the Fourth Proportional to 818,618.87, 1,228,098.41 and 345,308.33

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Solution

The fourth proportional to 818,618.87, 1,228,098.41 and 345,308.33 is: 518,034.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,618.87 : 1,228,098.41 = 345,308.33 : x
  2. Step 2: Convert to fraction form
    818,618.87/1,228,098.41 = 345,308.33/x
  3. Step 3: Cross multiply
    818,618.87x = 1,228,098.41 × 345,308.33
  4. Step 4: Simplify right side
    818,618.87x = 424,072,613,671.37
  5. Step 5: Solve for x
    x = 424,072,613,671.37/818,618.87
  6. Step 6: Final answer
    x = 518,034.25

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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.