Home / 1,390,935.24-2,086,402.80-759,504.60

Finding the Fourth Proportional to 1,390,935.24, 2,086,402.80 and 759,504.60

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Solution

The fourth proportional to 1,390,935.24, 2,086,402.80 and 759,504.60 is: 1,139,256.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,935.24 : 2,086,402.80 = 759,504.60 : x
  2. Step 2: Convert to fraction form
    1,390,935.24/2,086,402.80 = 759,504.60/x
  3. Step 3: Cross multiply
    1,390,935.24x = 2,086,402.80 × 759,504.60
  4. Step 4: Simplify right side
    1,390,935.24x = 1,584,632,524,052.88
  5. Step 5: Solve for x
    x = 1,584,632,524,052.88/1,390,935.24
  6. Step 6: Final answer
    x = 1,139,256.87

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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.