Home / 1,398,771.54-1,930,301.73-786,924.72

Finding the Fourth Proportional to 1,398,771.54, 1,930,301.73 and 786,924.72

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Solution

The fourth proportional to 1,398,771.54, 1,930,301.73 and 786,924.72 is: 1,085,954.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,771.54 : 1,930,301.73 = 786,924.72 : x
  2. Step 2: Convert to fraction form
    1,398,771.54/1,930,301.73 = 786,924.72/x
  3. Step 3: Cross multiply
    1,398,771.54x = 1,930,301.73 × 786,924.72
  4. Step 4: Simplify right side
    1,398,771.54x = 1,519,002,148,395.77
  5. Step 5: Solve for x
    x = 1,519,002,148,395.77/1,398,771.54
  6. Step 6: Final answer
    x = 1,085,954.43

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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.