Home / 490,913.64-677,456.57-276,049.13

Finding the Fourth Proportional to 490,913.64, 677,456.57 and 276,049.13

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Solution

The fourth proportional to 490,913.64, 677,456.57 and 276,049.13 is: 380,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,913.64 : 677,456.57 = 276,049.13 : x
  2. Step 2: Convert to fraction form
    490,913.64/677,456.57 = 276,049.13/x
  3. Step 3: Cross multiply
    490,913.64x = 677,456.57 × 276,049.13
  4. Step 4: Simplify right side
    490,913.64x = 187,011,291,993.76
  5. Step 5: Solve for x
    x = 187,011,291,993.76/490,913.64
  6. Step 6: Final answer
    x = 380,945.40

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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.