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Finding the Fourth Proportional to 489,887.22, 734,877.30 and 190,390.92

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Solution

The fourth proportional to 489,887.22, 734,877.30 and 190,390.92 is: 285,604.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,887.22 : 734,877.30 = 190,390.92 : x
  2. Step 2: Convert to fraction form
    489,887.22/734,877.30 = 190,390.92/x
  3. Step 3: Cross multiply
    489,887.22x = 734,877.30 × 190,390.92
  4. Step 4: Simplify right side
    489,887.22x = 139,913,965,234.12
  5. Step 5: Solve for x
    x = 139,913,965,234.12/489,887.22
  6. Step 6: Final answer
    x = 285,604.44

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1.5x scale

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.