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Finding the Fourth Proportional to 439,485.39, 606,492.86 and 255,833.37

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Solution

The fourth proportional to 439,485.39, 606,492.86 and 255,833.37 is: 353,051.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,485.39 : 606,492.86 = 255,833.37 : x
  2. Step 2: Convert to fraction form
    439,485.39/606,492.86 = 255,833.37/x
  3. Step 3: Cross multiply
    439,485.39x = 606,492.86 × 255,833.37
  4. Step 4: Simplify right side
    439,485.39x = 155,161,110,975.57
  5. Step 5: Solve for x
    x = 155,161,110,975.57/439,485.39
  6. Step 6: Final answer
    x = 353,051.81

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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.