Home / 1,395,913.88-1,925,870.61-912,761.84

Finding the Fourth Proportional to 1,395,913.88, 1,925,870.61 and 912,761.84

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Solution

The fourth proportional to 1,395,913.88, 1,925,870.61 and 912,761.84 is: 1,259,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,913.88 : 1,925,870.61 = 912,761.84 : x
  2. Step 2: Convert to fraction form
    1,395,913.88/1,925,870.61 = 912,761.84/x
  3. Step 3: Cross multiply
    1,395,913.88x = 1,925,870.61 × 912,761.84
  4. Step 4: Simplify right side
    1,395,913.88x = 1,757,861,201,585.52
  5. Step 5: Solve for x
    x = 1,757,861,201,585.52/1,395,913.88
  6. Step 6: Final answer
    x = 1,259,290.58

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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.