Home / 1,179,175.14-1,768,327.56-420,813.72

Finding the Fourth Proportional to 1,179,175.14, 1,768,327.56 and 420,813.72

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Solution

The fourth proportional to 1,179,175.14, 1,768,327.56 and 420,813.72 is: 631,065.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,175.14 : 1,768,327.56 = 420,813.72 : x
  2. Step 2: Convert to fraction form
    1,179,175.14/1,768,327.56 = 420,813.72/x
  3. Step 3: Cross multiply
    1,179,175.14x = 1,768,327.56 × 420,813.72
  4. Step 4: Simplify right side
    1,179,175.14x = 744,136,498,702.12
  5. Step 5: Solve for x
    x = 744,136,498,702.12/1,179,175.14
  6. Step 6: Final answer
    x = 631,065.29

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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.