Home / 1,167,421.76-1,751,039.12-519,198.64

Finding the Fourth Proportional to 1,167,421.76, 1,751,039.12 and 519,198.64

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Solution

The fourth proportional to 1,167,421.76, 1,751,039.12 and 519,198.64 is: 778,756.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,421.76 : 1,751,039.12 = 519,198.64 : x
  2. Step 2: Convert to fraction form
    1,167,421.76/1,751,039.12 = 519,198.64/x
  3. Step 3: Cross multiply
    1,167,421.76x = 1,751,039.12 × 519,198.64
  4. Step 4: Simplify right side
    1,167,421.76x = 909,137,129,690.80
  5. Step 5: Solve for x
    x = 909,137,129,690.80/1,167,421.76
  6. Step 6: Final answer
    x = 778,756.37

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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.