Home / 1,190,994.45-1,643,579.67-647,131.74

Finding the Fourth Proportional to 1,190,994.45, 1,643,579.67 and 647,131.74

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Solution

The fourth proportional to 1,190,994.45, 1,643,579.67 and 647,131.74 is: 893,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,994.45 : 1,643,579.67 = 647,131.74 : x
  2. Step 2: Convert to fraction form
    1,190,994.45/1,643,579.67 = 647,131.74/x
  3. Step 3: Cross multiply
    1,190,994.45x = 1,643,579.67 × 647,131.74
  4. Step 4: Simplify right side
    1,190,994.45x = 1,063,612,568,440.07
  5. Step 5: Solve for x
    x = 1,063,612,568,440.07/1,190,994.45
  6. Step 6: Final answer
    x = 893,045.78

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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.