Home / 420,567.27-580,378.86-259,357.83

Finding the Fourth Proportional to 420,567.27, 580,378.86 and 259,357.83

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Solution

The fourth proportional to 420,567.27, 580,378.86 and 259,357.83 is: 357,911.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,567.27 : 580,378.86 = 259,357.83 : x
  2. Step 2: Convert to fraction form
    420,567.27/580,378.86 = 259,357.83/x
  3. Step 3: Cross multiply
    420,567.27x = 580,378.86 × 259,357.83
  4. Step 4: Simplify right side
    420,567.27x = 150,525,801,707.47
  5. Step 5: Solve for x
    x = 150,525,801,707.47/420,567.27
  6. Step 6: Final answer
    x = 357,911.36

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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.