Home / 490,938.30-677,415.82-276,065.55

Finding the Fourth Proportional to 490,938.30, 677,415.82 and 276,065.55

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Solution

The fourth proportional to 490,938.30, 677,415.82 and 276,065.55 is: 380,926.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,938.30 : 677,415.82 = 276,065.55 : x
  2. Step 2: Convert to fraction form
    490,938.30/677,415.82 = 276,065.55/x
  3. Step 3: Cross multiply
    490,938.30x = 677,415.82 × 276,065.55
  4. Step 4: Simplify right side
    490,938.30x = 187,011,170,927.00
  5. Step 5: Solve for x
    x = 187,011,170,927.00/490,938.30
  6. Step 6: Final answer
    x = 380,926.02

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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.