Home / 980,336.35-1,470,505.74-306,421.12

Finding the Fourth Proportional to 980,336.35, 1,470,505.74 and 306,421.12

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Solution

The fourth proportional to 980,336.35, 1,470,505.74 and 306,421.12 is: 459,632.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,336.35 : 1,470,505.74 = 306,421.12 : x
  2. Step 2: Convert to fraction form
    980,336.35/1,470,505.74 = 306,421.12/x
  3. Step 3: Cross multiply
    980,336.35x = 1,470,505.74 × 306,421.12
  4. Step 4: Simplify right side
    980,336.35x = 450,594,015,817.23
  5. Step 5: Solve for x
    x = 450,594,015,817.23/980,336.35
  6. Step 6: Final answer
    x = 459,632.06

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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.