Home / 486,216.45-670,930.74-268,410.98

Finding the Fourth Proportional to 486,216.45, 670,930.74 and 268,410.98

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Solution

The fourth proportional to 486,216.45, 670,930.74 and 268,410.98 is: 370,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,216.45 : 670,930.74 = 268,410.98 : x
  2. Step 2: Convert to fraction form
    486,216.45/670,930.74 = 268,410.98/x
  3. Step 3: Cross multiply
    486,216.45x = 670,930.74 × 268,410.98
  4. Step 4: Simplify right side
    486,216.45x = 180,085,177,435.53
  5. Step 5: Solve for x
    x = 180,085,177,435.53/486,216.45
  6. Step 6: Final answer
    x = 370,380.68

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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.