Home / 1,776,449.97-2,664,650.21-428,601.27

Finding the Fourth Proportional to 1,776,449.97, 2,664,650.21 and 428,601.27

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Solution

The fourth proportional to 1,776,449.97, 2,664,650.21 and 428,601.27 is: 642,895.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,449.97 : 2,664,650.21 = 428,601.27 : x
  2. Step 2: Convert to fraction form
    1,776,449.97/2,664,650.21 = 428,601.27/x
  3. Step 3: Cross multiply
    1,776,449.97x = 2,664,650.21 × 428,601.27
  4. Step 4: Simplify right side
    1,776,449.97x = 1,142,072,461,968.76
  5. Step 5: Solve for x
    x = 1,142,072,461,968.76/1,776,449.97
  6. Step 6: Final answer
    x = 642,895.93

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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.