Home / 853,771.25-1,278,361.89-650,398.47

Finding the Fourth Proportional to 853,771.25, 1,278,361.89 and 650,398.47

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Solution

The fourth proportional to 853,771.25, 1,278,361.89 and 650,398.47 is: 973,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,771.25 : 1,278,361.89 = 650,398.47 : x
  2. Step 2: Convert to fraction form
    853,771.25/1,278,361.89 = 650,398.47/x
  3. Step 3: Cross multiply
    853,771.25x = 1,278,361.89 × 650,398.47
  4. Step 4: Simplify right side
    853,771.25x = 831,444,617,362.31
  5. Step 5: Solve for x
    x = 831,444,617,362.31/853,771.25
  6. Step 6: Final answer
    x = 973,849.40

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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.