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Finding the Fourth Proportional to 439,008.58, 605,708.94 and 275,682.70

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Solution

The fourth proportional to 439,008.58, 605,708.94 and 275,682.70 is: 380,364.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,008.58 : 605,708.94 = 275,682.70 : x
  2. Step 2: Convert to fraction form
    439,008.58/605,708.94 = 275,682.70/x
  3. Step 3: Cross multiply
    439,008.58x = 605,708.94 × 275,682.70
  4. Step 4: Simplify right side
    439,008.58x = 166,983,475,993.34
  5. Step 5: Solve for x
    x = 166,983,475,993.34/439,008.58
  6. Step 6: Final answer
    x = 380,364.95

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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.