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Finding the Fourth Proportional to 439,650.76, 606,741.54 and 278,446.60

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Solution

The fourth proportional to 439,650.76, 606,741.54 and 278,446.60 is: 384,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,650.76 : 606,741.54 = 278,446.60 : x
  2. Step 2: Convert to fraction form
    439,650.76/606,741.54 = 278,446.60/x
  3. Step 3: Cross multiply
    439,650.76x = 606,741.54 × 278,446.60
  4. Step 4: Simplify right side
    439,650.76x = 168,945,118,891.76
  5. Step 5: Solve for x
    x = 168,945,118,891.76/439,650.76
  6. Step 6: Final answer
    x = 384,271.19

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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.