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Finding the Fourth Proportional to 439,460.28, 606,232.62 and 278,043.48

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Solution

The fourth proportional to 439,460.28, 606,232.62 and 278,043.48 is: 383,559.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,460.28 : 606,232.62 = 278,043.48 : x
  2. Step 2: Convert to fraction form
    439,460.28/606,232.62 = 278,043.48/x
  3. Step 3: Cross multiply
    439,460.28x = 606,232.62 × 278,043.48
  4. Step 4: Simplify right side
    439,460.28x = 168,559,027,354.32
  5. Step 5: Solve for x
    x = 168,559,027,354.32/439,460.28
  6. Step 6: Final answer
    x = 383,559.19

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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.