Home / 1,138,804.76-1,571,560.02-629,515.64

Finding the Fourth Proportional to 1,138,804.76, 1,571,560.02 and 629,515.64

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Solution

The fourth proportional to 1,138,804.76, 1,571,560.02 and 629,515.64 is: 868,736.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,804.76 : 1,571,560.02 = 629,515.64 : x
  2. Step 2: Convert to fraction form
    1,138,804.76/1,571,560.02 = 629,515.64/x
  3. Step 3: Cross multiply
    1,138,804.76x = 1,571,560.02 × 629,515.64
  4. Step 4: Simplify right side
    1,138,804.76x = 989,321,611,788.71
  5. Step 5: Solve for x
    x = 989,321,611,788.71/1,138,804.76
  6. Step 6: Final answer
    x = 868,736.81

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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.