Home / 1,372,013.95-2,048,232.75-1,280,838.39

Finding the Fourth Proportional to 1,372,013.95, 2,048,232.75 and 1,280,838.39

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Solution

The fourth proportional to 1,372,013.95, 2,048,232.75 and 1,280,838.39 is: 1,912,119.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,013.95 : 2,048,232.75 = 1,280,838.39 : x
  2. Step 2: Convert to fraction form
    1,372,013.95/2,048,232.75 = 1,280,838.39/x
  3. Step 3: Cross multiply
    1,372,013.95x = 2,048,232.75 × 1,280,838.39
  4. Step 4: Simplify right side
    1,372,013.95x = 2,623,455,137,855.27
  5. Step 5: Solve for x
    x = 2,623,455,137,855.27/1,372,013.95
  6. Step 6: Final answer
    x = 1,912,119.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.