Home / 1,112,858.20-1,669,287.30-664,085.80

Finding the Fourth Proportional to 1,112,858.20, 1,669,287.30 and 664,085.80

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Solution

The fourth proportional to 1,112,858.20, 1,669,287.30 and 664,085.80 is: 996,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,858.20 : 1,669,287.30 = 664,085.80 : x
  2. Step 2: Convert to fraction form
    1,112,858.20/1,669,287.30 = 664,085.80/x
  3. Step 3: Cross multiply
    1,112,858.20x = 1,669,287.30 × 664,085.80
  4. Step 4: Simplify right side
    1,112,858.20x = 1,108,549,992,050.34
  5. Step 5: Solve for x
    x = 1,108,549,992,050.34/1,112,858.20
  6. Step 6: Final answer
    x = 996,128.70

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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.