Home / 1,179,163.42-1,769,118.98-420,988.39

Finding the Fourth Proportional to 1,179,163.42, 1,769,118.98 and 420,988.39

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Solution

The fourth proportional to 1,179,163.42, 1,769,118.98 and 420,988.39 is: 631,616.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,163.42 : 1,769,118.98 = 420,988.39 : x
  2. Step 2: Convert to fraction form
    1,179,163.42/1,769,118.98 = 420,988.39/x
  3. Step 3: Cross multiply
    1,179,163.42x = 1,769,118.98 × 420,988.39
  4. Step 4: Simplify right side
    1,179,163.42x = 744,778,544,580.90
  5. Step 5: Solve for x
    x = 744,778,544,580.90/1,179,163.42
  6. Step 6: Final answer
    x = 631,616.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.