Home / 679,157.78-1,017,405.54-394,250.94

Finding the Fourth Proportional to 679,157.78, 1,017,405.54 and 394,250.94

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Solution

The fourth proportional to 679,157.78, 1,017,405.54 and 394,250.94 is: 590,603.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,157.78 : 1,017,405.54 = 394,250.94 : x
  2. Step 2: Convert to fraction form
    679,157.78/1,017,405.54 = 394,250.94/x
  3. Step 3: Cross multiply
    679,157.78x = 1,017,405.54 × 394,250.94
  4. Step 4: Simplify right side
    679,157.78x = 401,113,090,506.21
  5. Step 5: Solve for x
    x = 401,113,090,506.21/679,157.78
  6. Step 6: Final answer
    x = 590,603.69

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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.