Home / 850,039.21-1,274,257.32-423,171.64

Finding the Fourth Proportional to 850,039.21, 1,274,257.32 and 423,171.64

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Solution

The fourth proportional to 850,039.21, 1,274,257.32 and 423,171.64 is: 634,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,039.21 : 1,274,257.32 = 423,171.64 : x
  2. Step 2: Convert to fraction form
    850,039.21/1,274,257.32 = 423,171.64/x
  3. Step 3: Cross multiply
    850,039.21x = 1,274,257.32 × 423,171.64
  4. Step 4: Simplify right side
    850,039.21x = 539,229,559,886.41
  5. Step 5: Solve for x
    x = 539,229,559,886.41/850,039.21
  6. Step 6: Final answer
    x = 634,358.45

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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.