Home / 1,382,139.40-1,907,275.26-761,924.56

Finding the Fourth Proportional to 1,382,139.40, 1,907,275.26 and 761,924.56

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Solution

The fourth proportional to 1,382,139.40, 1,907,275.26 and 761,924.56 is: 1,051,413.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,139.40 : 1,907,275.26 = 761,924.56 : x
  2. Step 2: Convert to fraction form
    1,382,139.40/1,907,275.26 = 761,924.56/x
  3. Step 3: Cross multiply
    1,382,139.40x = 1,907,275.26 × 761,924.56
  4. Step 4: Simplify right side
    1,382,139.40x = 1,453,199,863,274.39
  5. Step 5: Solve for x
    x = 1,453,199,863,274.39/1,382,139.40
  6. Step 6: Final answer
    x = 1,051,413.38

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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.