Home / 1,339,662.60-2,009,715.30-620,722.80

Finding the Fourth Proportional to 1,339,662.60, 2,009,715.30 and 620,722.80

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Solution

The fourth proportional to 1,339,662.60, 2,009,715.30 and 620,722.80 is: 931,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,662.60 : 2,009,715.30 = 620,722.80 : x
  2. Step 2: Convert to fraction form
    1,339,662.60/2,009,715.30 = 620,722.80/x
  3. Step 3: Cross multiply
    1,339,662.60x = 2,009,715.30 × 620,722.80
  4. Step 4: Simplify right side
    1,339,662.60x = 1,247,476,108,218.84
  5. Step 5: Solve for x
    x = 1,247,476,108,218.84/1,339,662.60
  6. Step 6: Final answer
    x = 931,186.78

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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.