Home / 679,216.92-1,019,267.64-258,496.44

Finding the Fourth Proportional to 679,216.92, 1,019,267.64 and 258,496.44

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Solution

The fourth proportional to 679,216.92, 1,019,267.64 and 258,496.44 is: 387,912.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,216.92 : 1,019,267.64 = 258,496.44 : x
  2. Step 2: Convert to fraction form
    679,216.92/1,019,267.64 = 258,496.44/x
  3. Step 3: Cross multiply
    679,216.92x = 1,019,267.64 × 258,496.44
  4. Step 4: Simplify right side
    679,216.92x = 263,477,056,347.20
  5. Step 5: Solve for x
    x = 263,477,056,347.20/679,216.92
  6. Step 6: Final answer
    x = 387,912.98

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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.