Home / 1,332,004.60-1,998,006.90-800,126.20

Finding the Fourth Proportional to 1,332,004.60, 1,998,006.90 and 800,126.20

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Solution

The fourth proportional to 1,332,004.60, 1,998,006.90 and 800,126.20 is: 1,200,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,004.60 : 1,998,006.90 = 800,126.20 : x
  2. Step 2: Convert to fraction form
    1,332,004.60/1,998,006.90 = 800,126.20/x
  3. Step 3: Cross multiply
    1,332,004.60x = 1,998,006.90 × 800,126.20
  4. Step 4: Simplify right side
    1,332,004.60x = 1,598,657,668,470.78
  5. Step 5: Solve for x
    x = 1,598,657,668,470.78/1,332,004.60
  6. Step 6: Final answer
    x = 1,200,189.30

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1.5x scale

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.