Home / 1,386,738-1,913,694.38-774,891.36

Finding the Fourth Proportional to 1,386,738, 1,913,694.38 and 774,891.36

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Solution

The fourth proportional to 1,386,738, 1,913,694.38 and 774,891.36 is: 1,069,347.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,738 : 1,913,694.38 = 774,891.36 : x
  2. Step 2: Convert to fraction form
    1,386,738/1,913,694.38 = 774,891.36/x
  3. Step 3: Cross multiply
    1,386,738x = 1,913,694.38 × 774,891.36
  4. Step 4: Simplify right side
    1,386,738x = 1,482,905,240,742.56
  5. Step 5: Solve for x
    x = 1,482,905,240,742.56/1,386,738
  6. Step 6: Final answer
    x = 1,069,347.81

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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.