Home / 1,776,440.41-2,664,635.86-428,591.71

Finding the Fourth Proportional to 1,776,440.41, 2,664,635.86 and 428,591.71

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Solution

The fourth proportional to 1,776,440.41, 2,664,635.86 and 428,591.71 is: 642,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,440.41 : 2,664,635.86 = 428,591.71 : x
  2. Step 2: Convert to fraction form
    1,776,440.41/2,664,635.86 = 428,591.71/x
  3. Step 3: Cross multiply
    1,776,440.41x = 2,664,635.86 × 428,591.71
  4. Step 4: Simplify right side
    1,776,440.41x = 1,142,040,829,848.09
  5. Step 5: Solve for x
    x = 1,142,040,829,848.09/1,776,440.41
  6. Step 6: Final answer
    x = 642,881.59

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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.