Home / 1,455,216.78-2,008,259.70-810,636.84

Finding the Fourth Proportional to 1,455,216.78, 2,008,259.70 and 810,636.84

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Solution

The fourth proportional to 1,455,216.78, 2,008,259.70 and 810,636.84 is: 1,118,712.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,216.78 : 2,008,259.70 = 810,636.84 : x
  2. Step 2: Convert to fraction form
    1,455,216.78/2,008,259.70 = 810,636.84/x
  3. Step 3: Cross multiply
    1,455,216.78x = 2,008,259.70 × 810,636.84
  4. Step 4: Simplify right side
    1,455,216.78x = 1,627,969,297,107.35
  5. Step 5: Solve for x
    x = 1,627,969,297,107.35/1,455,216.78
  6. Step 6: Final answer
    x = 1,118,712.57

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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.