Home / 1,395,936.42-1,925,901.60-912,784.38

Finding the Fourth Proportional to 1,395,936.42, 1,925,901.60 and 912,784.38

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Solution

The fourth proportional to 1,395,936.42, 1,925,901.60 and 912,784.38 is: 1,259,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,936.42 : 1,925,901.60 = 912,784.38 : x
  2. Step 2: Convert to fraction form
    1,395,936.42/1,925,901.60 = 912,784.38/x
  3. Step 3: Cross multiply
    1,395,936.42x = 1,925,901.60 × 912,784.38
  4. Step 4: Simplify right side
    1,395,936.42x = 1,757,932,897,897.01
  5. Step 5: Solve for x
    x = 1,757,932,897,897.01/1,395,936.42
  6. Step 6: Final answer
    x = 1,259,321.61

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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.