Home / 491,018.20-677,527.04-276,116.76

Finding the Fourth Proportional to 491,018.20, 677,527.04 and 276,116.76

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Solution

The fourth proportional to 491,018.20, 677,527.04 and 276,116.76 is: 380,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,018.20 : 677,527.04 = 276,116.76 : x
  2. Step 2: Convert to fraction form
    491,018.20/677,527.04 = 276,116.76/x
  3. Step 3: Cross multiply
    491,018.20x = 677,527.04 × 276,116.76
  4. Step 4: Simplify right side
    491,018.20x = 187,076,571,904.95
  5. Step 5: Solve for x
    x = 187,076,571,904.95/491,018.20
  6. Step 6: Final answer
    x = 380,997.23

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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.