Home / 789,238.34-1,088,882.40-449,466.02

Finding the Fourth Proportional to 789,238.34, 1,088,882.40 and 449,466.02

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Solution

The fourth proportional to 789,238.34, 1,088,882.40 and 449,466.02 is: 620,111.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,238.34 : 1,088,882.40 = 449,466.02 : x
  2. Step 2: Convert to fraction form
    789,238.34/1,088,882.40 = 449,466.02/x
  3. Step 3: Cross multiply
    789,238.34x = 1,088,882.40 × 449,466.02
  4. Step 4: Simplify right side
    789,238.34x = 489,415,638,576.05
  5. Step 5: Solve for x
    x = 489,415,638,576.05/789,238.34
  6. Step 6: Final answer
    x = 620,111.33

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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.