Home / 489,939.10-734,622.60-190,069.30

Finding the Fourth Proportional to 489,939.10, 734,622.60 and 190,069.30

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Solution

The fourth proportional to 489,939.10, 734,622.60 and 190,069.30 is: 284,992.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,939.10 : 734,622.60 = 190,069.30 : x
  2. Step 2: Convert to fraction form
    489,939.10/734,622.60 = 190,069.30/x
  3. Step 3: Cross multiply
    489,939.10x = 734,622.60 × 190,069.30
  4. Step 4: Simplify right side
    489,939.10x = 139,629,203,346.18
  5. Step 5: Solve for x
    x = 139,629,203,346.18/489,939.10
  6. Step 6: Final answer
    x = 284,992.98

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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.