Home / 685,150.12-1,028,019.06-264,721.24

Finding the Fourth Proportional to 685,150.12, 1,028,019.06 and 264,721.24

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Solution

The fourth proportional to 685,150.12, 1,028,019.06 and 264,721.24 is: 397,195.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,150.12 : 1,028,019.06 = 264,721.24 : x
  2. Step 2: Convert to fraction form
    685,150.12/1,028,019.06 = 264,721.24/x
  3. Step 3: Cross multiply
    685,150.12x = 1,028,019.06 × 264,721.24
  4. Step 4: Simplify right side
    685,150.12x = 272,138,480,306.83
  5. Step 5: Solve for x
    x = 272,138,480,306.83/685,150.12
  6. Step 6: Final answer
    x = 397,195.41

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1.5x scale

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.