Home / 1,421,351.37-1,961,469.95-776,771.39

Finding the Fourth Proportional to 1,421,351.37, 1,961,469.95 and 776,771.39

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Solution

The fourth proportional to 1,421,351.37, 1,961,469.95 and 776,771.39 is: 1,071,947.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,351.37 : 1,961,469.95 = 776,771.39 : x
  2. Step 2: Convert to fraction form
    1,421,351.37/1,961,469.95 = 776,771.39/x
  3. Step 3: Cross multiply
    1,421,351.37x = 1,961,469.95 × 776,771.39
  4. Step 4: Simplify right side
    1,421,351.37x = 1,523,613,740,524.55
  5. Step 5: Solve for x
    x = 1,523,613,740,524.55/1,421,351.37
  6. Step 6: Final answer
    x = 1,071,947.28

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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.