Home / 1,355,893.56-1,870,669.68-774,699.68

Finding the Fourth Proportional to 1,355,893.56, 1,870,669.68 and 774,699.68

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Solution

The fourth proportional to 1,355,893.56, 1,870,669.68 and 774,699.68 is: 1,068,820.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,893.56 : 1,870,669.68 = 774,699.68 : x
  2. Step 2: Convert to fraction form
    1,355,893.56/1,870,669.68 = 774,699.68/x
  3. Step 3: Cross multiply
    1,355,893.56x = 1,870,669.68 × 774,699.68
  4. Step 4: Simplify right side
    1,355,893.56x = 1,449,207,202,481.70
  5. Step 5: Solve for x
    x = 1,449,207,202,481.70/1,355,893.56
  6. Step 6: Final answer
    x = 1,068,820.77

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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.