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Finding the Fourth Proportional to 491,018.57, 677,527.56 and 276,117.14

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Solution

The fourth proportional to 491,018.57, 677,527.56 and 276,117.14 is: 380,997.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,018.57 : 677,527.56 = 276,117.14 : x
  2. Step 2: Convert to fraction form
    491,018.57/677,527.56 = 276,117.14/x
  3. Step 3: Cross multiply
    491,018.57x = 677,527.56 × 276,117.14
  4. Step 4: Simplify right side
    491,018.57x = 187,076,967,715.30
  5. Step 5: Solve for x
    x = 187,076,967,715.30/491,018.57
  6. Step 6: Final answer
    x = 380,997.74

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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.