Home / 687,362.44-1,030,629.48-308,214.54

Finding the Fourth Proportional to 687,362.44, 1,030,629.48 and 308,214.54

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Solution

The fourth proportional to 687,362.44, 1,030,629.48 and 308,214.54 is: 462,136.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,362.44 : 1,030,629.48 = 308,214.54 : x
  2. Step 2: Convert to fraction form
    687,362.44/1,030,629.48 = 308,214.54/x
  3. Step 3: Cross multiply
    687,362.44x = 1,030,629.48 × 308,214.54
  4. Step 4: Simplify right side
    687,362.44x = 317,654,991,088.64
  5. Step 5: Solve for x
    x = 317,654,991,088.64/687,362.44
  6. Step 6: Final answer
    x = 462,136.09

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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.