Home / 1,426,816.23-1,969,005.87-782,222.60

Finding the Fourth Proportional to 1,426,816.23, 1,969,005.87 and 782,222.60

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Solution

The fourth proportional to 1,426,816.23, 1,969,005.87 and 782,222.60 is: 1,079,466.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,816.23 : 1,969,005.87 = 782,222.60 : x
  2. Step 2: Convert to fraction form
    1,426,816.23/1,969,005.87 = 782,222.60/x
  3. Step 3: Cross multiply
    1,426,816.23x = 1,969,005.87 × 782,222.60
  4. Step 4: Simplify right side
    1,426,816.23x = 1,540,200,881,201.63
  5. Step 5: Solve for x
    x = 1,540,200,881,201.63/1,426,816.23
  6. Step 6: Final answer
    x = 1,079,466.89

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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.