Home / 1,991,106.60-2,986,670.70-495,198.60

Finding the Fourth Proportional to 1,991,106.60, 2,986,670.70 and 495,198.60

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Solution

The fourth proportional to 1,991,106.60, 2,986,670.70 and 495,198.60 is: 742,800.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,106.60 : 2,986,670.70 = 495,198.60 : x
  2. Step 2: Convert to fraction form
    1,991,106.60/2,986,670.70 = 495,198.60/x
  3. Step 3: Cross multiply
    1,991,106.60x = 2,986,670.70 × 495,198.60
  4. Step 4: Simplify right side
    1,991,106.60x = 1,478,995,149,301.02
  5. Step 5: Solve for x
    x = 1,478,995,149,301.02/1,991,106.60
  6. Step 6: Final answer
    x = 742,800.59

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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.