Home / 980,330.85-1,470,497.49-306,415.61

Finding the Fourth Proportional to 980,330.85, 1,470,497.49 and 306,415.61

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Solution

The fourth proportional to 980,330.85, 1,470,497.49 and 306,415.61 is: 459,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,330.85 : 1,470,497.49 = 306,415.61 : x
  2. Step 2: Convert to fraction form
    980,330.85/1,470,497.49 = 306,415.61/x
  3. Step 3: Cross multiply
    980,330.85x = 1,470,497.49 × 306,415.61
  4. Step 4: Simplify right side
    980,330.85x = 450,583,383,563.70
  5. Step 5: Solve for x
    x = 450,583,383,563.70/980,330.85
  6. Step 6: Final answer
    x = 459,623.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.