Home / 1,498,387.36-2,066,007.72-1,211,018.80

Finding the Fourth Proportional to 1,498,387.36, 2,066,007.72 and 1,211,018.80

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Solution

The fourth proportional to 1,498,387.36, 2,066,007.72 and 1,211,018.80 is: 1,669,777.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,498,387.36 : 2,066,007.72 = 1,211,018.80 : x
  2. Step 2: Convert to fraction form
    1,498,387.36/2,066,007.72 = 1,211,018.80/x
  3. Step 3: Cross multiply
    1,498,387.36x = 2,066,007.72 × 1,211,018.80
  4. Step 4: Simplify right side
    1,498,387.36x = 2,501,974,189,865.14
  5. Step 5: Solve for x
    x = 2,501,974,189,865.14/1,498,387.36
  6. Step 6: Final answer
    x = 1,669,777.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.