Home / 1,332,005.10-1,998,007.65-800,126.70

Finding the Fourth Proportional to 1,332,005.10, 1,998,007.65 and 800,126.70

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Solution

The fourth proportional to 1,332,005.10, 1,998,007.65 and 800,126.70 is: 1,200,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,005.10 : 1,998,007.65 = 800,126.70 : x
  2. Step 2: Convert to fraction form
    1,332,005.10/1,998,007.65 = 800,126.70/x
  3. Step 3: Cross multiply
    1,332,005.10x = 1,998,007.65 × 800,126.70
  4. Step 4: Simplify right side
    1,332,005.10x = 1,598,659,267,569.26
  5. Step 5: Solve for x
    x = 1,598,659,267,569.26/1,332,005.10
  6. Step 6: Final answer
    x = 1,200,190.05

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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.