Home / 1,276,348.80-1,912,773.60-1,040,152.80

Finding the Fourth Proportional to 1,276,348.80, 1,912,773.60 and 1,040,152.80

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Solution

The fourth proportional to 1,276,348.80, 1,912,773.60 and 1,040,152.80 is: 1,558,803.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,348.80 : 1,912,773.60 = 1,040,152.80 : x
  2. Step 2: Convert to fraction form
    1,276,348.80/1,912,773.60 = 1,040,152.80/x
  3. Step 3: Cross multiply
    1,276,348.80x = 1,912,773.60 × 1,040,152.80
  4. Step 4: Simplify right side
    1,276,348.80x = 1,989,576,815,806.08
  5. Step 5: Solve for x
    x = 1,989,576,815,806.08/1,276,348.80
  6. Step 6: Final answer
    x = 1,558,803.37

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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.