Home / 490,824.55-677,320.54-275,976.91

Finding the Fourth Proportional to 490,824.55, 677,320.54 and 275,976.91

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Solution

The fourth proportional to 490,824.55, 677,320.54 and 275,976.91 is: 380,838.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,824.55 : 677,320.54 = 275,976.91 : x
  2. Step 2: Convert to fraction form
    490,824.55/677,320.54 = 275,976.91/x
  3. Step 3: Cross multiply
    490,824.55x = 677,320.54 × 275,976.91
  4. Step 4: Simplify right side
    490,824.55x = 186,924,829,708.73
  5. Step 5: Solve for x
    x = 186,924,829,708.73/490,824.55
  6. Step 6: Final answer
    x = 380,838.39

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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.