Home / 1,356,118.83-1,870,979.31-774,924.39

Finding the Fourth Proportional to 1,356,118.83, 1,870,979.31 and 774,924.39

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Solution

The fourth proportional to 1,356,118.83, 1,870,979.31 and 774,924.39 is: 1,069,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,118.83 : 1,870,979.31 = 774,924.39 : x
  2. Step 2: Convert to fraction form
    1,356,118.83/1,870,979.31 = 774,924.39/x
  3. Step 3: Cross multiply
    1,356,118.83x = 1,870,979.31 × 774,924.39
  4. Step 4: Simplify right side
    1,356,118.83x = 1,449,867,500,504.37
  5. Step 5: Solve for x
    x = 1,449,867,500,504.37/1,356,118.83
  6. Step 6: Final answer
    x = 1,069,130.13

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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.