Home / 1,521,021.37-2,098,863.78-909,052.30

Finding the Fourth Proportional to 1,521,021.37, 2,098,863.78 and 909,052.30

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Solution

The fourth proportional to 1,521,021.37, 2,098,863.78 and 909,052.30 is: 1,254,405.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,021.37 : 2,098,863.78 = 909,052.30 : x
  2. Step 2: Convert to fraction form
    1,521,021.37/2,098,863.78 = 909,052.30/x
  3. Step 3: Cross multiply
    1,521,021.37x = 2,098,863.78 × 909,052.30
  4. Step 4: Simplify right side
    1,521,021.37x = 1,907,976,936,101.38
  5. Step 5: Solve for x
    x = 1,907,976,936,101.38/1,521,021.37
  6. Step 6: Final answer
    x = 1,254,405.08

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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.