Home / 789,089.44-1,088,887.44-449,495.20

Finding the Fourth Proportional to 789,089.44, 1,088,887.44 and 449,495.20

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Solution

The fourth proportional to 789,089.44, 1,088,887.44 and 449,495.20 is: 620,271.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,089.44 : 1,088,887.44 = 449,495.20 : x
  2. Step 2: Convert to fraction form
    789,089.44/1,088,887.44 = 449,495.20/x
  3. Step 3: Cross multiply
    789,089.44x = 1,088,887.44 × 449,495.20
  4. Step 4: Simplify right side
    789,089.44x = 489,449,677,620.29
  5. Step 5: Solve for x
    x = 489,449,677,620.29/789,089.44
  6. Step 6: Final answer
    x = 620,271.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.