Home / 1,355,942.06-1,870,907.72-782,650.08

Finding the Fourth Proportional to 1,355,942.06, 1,870,907.72 and 782,650.08

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Solution

The fourth proportional to 1,355,942.06, 1,870,907.72 and 782,650.08 is: 1,079,888.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,942.06 : 1,870,907.72 = 782,650.08 : x
  2. Step 2: Convert to fraction form
    1,355,942.06/1,870,907.72 = 782,650.08/x
  3. Step 3: Cross multiply
    1,355,942.06x = 1,870,907.72 × 782,650.08
  4. Step 4: Simplify right side
    1,355,942.06x = 1,464,266,072,817.37
  5. Step 5: Solve for x
    x = 1,464,266,072,817.37/1,355,942.06
  6. Step 6: Final answer
    x = 1,079,888.38

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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.