Home / 1,091,738.70-1,637,608.05-664,836.30

Finding the Fourth Proportional to 1,091,738.70, 1,637,608.05 and 664,836.30

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Solution

The fourth proportional to 1,091,738.70, 1,637,608.05 and 664,836.30 is: 997,254.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,738.70 : 1,637,608.05 = 664,836.30 : x
  2. Step 2: Convert to fraction form
    1,091,738.70/1,637,608.05 = 664,836.30/x
  3. Step 3: Cross multiply
    1,091,738.70x = 1,637,608.05 × 664,836.30
  4. Step 4: Simplify right side
    1,091,738.70x = 1,088,741,276,812.22
  5. Step 5: Solve for x
    x = 1,088,741,276,812.22/1,091,738.70
  6. Step 6: Final answer
    x = 997,254.45

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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.