Home / 1,333,996.20-2,001,285.90-660,400.20

Finding the Fourth Proportional to 1,333,996.20, 2,001,285.90 and 660,400.20

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Solution

The fourth proportional to 1,333,996.20, 2,001,285.90 and 660,400.20 is: 990,744.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,996.20 : 2,001,285.90 = 660,400.20 : x
  2. Step 2: Convert to fraction form
    1,333,996.20/2,001,285.90 = 660,400.20/x
  3. Step 3: Cross multiply
    1,333,996.20x = 2,001,285.90 × 660,400.20
  4. Step 4: Simplify right side
    1,333,996.20x = 1,321,649,608,617.18
  5. Step 5: Solve for x
    x = 1,321,649,608,617.18/1,333,996.20
  6. Step 6: Final answer
    x = 990,744.66

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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.