Home / 1,138,739.38-1,708,109.07-465,138.52

Finding the Fourth Proportional to 1,138,739.38, 1,708,109.07 and 465,138.52

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Solution

The fourth proportional to 1,138,739.38, 1,708,109.07 and 465,138.52 is: 697,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,739.38 : 1,708,109.07 = 465,138.52 : x
  2. Step 2: Convert to fraction form
    1,138,739.38/1,708,109.07 = 465,138.52/x
  3. Step 3: Cross multiply
    1,138,739.38x = 1,708,109.07 × 465,138.52
  4. Step 4: Simplify right side
    1,138,739.38x = 794,507,324,818.38
  5. Step 5: Solve for x
    x = 794,507,324,818.38/1,138,739.38
  6. Step 6: Final answer
    x = 697,707.78

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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.