Home / 739,096.40-1,108,936.20-289,740.80

Finding the Fourth Proportional to 739,096.40, 1,108,936.20 and 289,740.80

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Solution

The fourth proportional to 739,096.40, 1,108,936.20 and 289,740.80 is: 434,725.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,096.40 : 1,108,936.20 = 289,740.80 : x
  2. Step 2: Convert to fraction form
    739,096.40/1,108,936.20 = 289,740.80/x
  3. Step 3: Cross multiply
    739,096.40x = 1,108,936.20 × 289,740.80
  4. Step 4: Simplify right side
    739,096.40x = 321,304,061,736.96
  5. Step 5: Solve for x
    x = 321,304,061,736.96/739,096.40
  6. Step 6: Final answer
    x = 434,725.51

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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.