Home / 1,091,708.20-1,637,562.30-664,805.80

Finding the Fourth Proportional to 1,091,708.20, 1,637,562.30 and 664,805.80

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Solution

The fourth proportional to 1,091,708.20, 1,637,562.30 and 664,805.80 is: 997,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,708.20 : 1,637,562.30 = 664,805.80 : x
  2. Step 2: Convert to fraction form
    1,091,708.20/1,637,562.30 = 664,805.80/x
  3. Step 3: Cross multiply
    1,091,708.20x = 1,637,562.30 × 664,805.80
  4. Step 4: Simplify right side
    1,091,708.20x = 1,088,660,914,901.34
  5. Step 5: Solve for x
    x = 1,088,660,914,901.34/1,091,708.20
  6. Step 6: Final answer
    x = 997,208.70

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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.