Home / 1,179,074-1,768,984.82-420,899.20

Finding the Fourth Proportional to 1,179,074, 1,768,984.82 and 420,899.20

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Solution

The fourth proportional to 1,179,074, 1,768,984.82 and 420,899.20 is: 631,482.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,074 : 1,768,984.82 = 420,899.20 : x
  2. Step 2: Convert to fraction form
    1,179,074/1,768,984.82 = 420,899.20/x
  3. Step 3: Cross multiply
    1,179,074x = 1,768,984.82 × 420,899.20
  4. Step 4: Simplify right side
    1,179,074x = 744,564,295,550.14
  5. Step 5: Solve for x
    x = 744,564,295,550.14/1,179,074
  6. Step 6: Final answer
    x = 631,482.24

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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.