Home / 3,280,071.92-4,920,072.33-1,121,076.45

Finding the Fourth Proportional to 3,280,071.92, 4,920,072.33 and 1,121,076.45

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Solution

The fourth proportional to 3,280,071.92, 4,920,072.33 and 1,121,076.45 is: 1,681,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,071.92 : 4,920,072.33 = 1,121,076.45 : x
  2. Step 2: Convert to fraction form
    3,280,071.92/4,920,072.33 = 1,121,076.45/x
  3. Step 3: Cross multiply
    3,280,071.92x = 4,920,072.33 × 1,121,076.45
  4. Step 4: Simplify right side
    3,280,071.92x = 5,515,777,225,663.67
  5. Step 5: Solve for x
    x = 5,515,777,225,663.67/3,280,071.92
  6. Step 6: Final answer
    x = 1,681,602.53

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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.