Home / 1,395,913.38-1,925,869.92-912,761.34

Finding the Fourth Proportional to 1,395,913.38, 1,925,869.92 and 912,761.34

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Solution

The fourth proportional to 1,395,913.38, 1,925,869.92 and 912,761.34 is: 1,259,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,913.38 : 1,925,869.92 = 912,761.34 : x
  2. Step 2: Convert to fraction form
    1,395,913.38/1,925,869.92 = 912,761.34/x
  3. Step 3: Cross multiply
    1,395,913.38x = 1,925,869.92 × 912,761.34
  4. Step 4: Simplify right side
    1,395,913.38x = 1,757,859,608,844.89
  5. Step 5: Solve for x
    x = 1,757,859,608,844.89/1,395,913.38
  6. Step 6: Final answer
    x = 1,259,289.89

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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.