Home / 1,421,063.94-1,961,068.77-767,690.22

Finding the Fourth Proportional to 1,421,063.94, 1,961,068.77 and 767,690.22

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Solution

The fourth proportional to 1,421,063.94, 1,961,068.77 and 767,690.22 is: 1,059,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,063.94 : 1,961,068.77 = 767,690.22 : x
  2. Step 2: Convert to fraction form
    1,421,063.94/1,961,068.77 = 767,690.22/x
  3. Step 3: Cross multiply
    1,421,063.94x = 1,961,068.77 × 767,690.22
  4. Step 4: Simplify right side
    1,421,063.94x = 1,505,493,315,476.43
  5. Step 5: Solve for x
    x = 1,505,493,315,476.43/1,421,063.94
  6. Step 6: Final answer
    x = 1,059,412.79

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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.