Home / 1,515,603.98-2,091,221.26-870,899.61

Finding the Fourth Proportional to 1,515,603.98, 2,091,221.26 and 870,899.61

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Solution

The fourth proportional to 1,515,603.98, 2,091,221.26 and 870,899.61 is: 1,201,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,603.98 : 2,091,221.26 = 870,899.61 : x
  2. Step 2: Convert to fraction form
    1,515,603.98/2,091,221.26 = 870,899.61/x
  3. Step 3: Cross multiply
    1,515,603.98x = 2,091,221.26 × 870,899.61
  4. Step 4: Simplify right side
    1,515,603.98x = 1,821,243,786,400.31
  5. Step 5: Solve for x
    x = 1,821,243,786,400.31/1,515,603.98
  6. Step 6: Final answer
    x = 1,201,662.05

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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.