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Finding the Fourth Proportional to 474,739.47, 655,140.42 and 259,879.68

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Solution

The fourth proportional to 474,739.47, 655,140.42 and 259,879.68 is: 358,633.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,739.47 : 655,140.42 = 259,879.68 : x
  2. Step 2: Convert to fraction form
    474,739.47/655,140.42 = 259,879.68/x
  3. Step 3: Cross multiply
    474,739.47x = 655,140.42 × 259,879.68
  4. Step 4: Simplify right side
    474,739.47x = 170,257,682,704.67
  5. Step 5: Solve for x
    x = 170,257,682,704.67/474,739.47
  6. Step 6: Final answer
    x = 358,633.93

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1.5x scale

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.