Home / 980,147.56-1,470,168.26-306,151.42

Finding the Fourth Proportional to 980,147.56, 1,470,168.26 and 306,151.42

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Solution

The fourth proportional to 980,147.56, 1,470,168.26 and 306,151.42 is: 459,210.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,147.56 : 1,470,168.26 = 306,151.42 : x
  2. Step 2: Convert to fraction form
    980,147.56/1,470,168.26 = 306,151.42/x
  3. Step 3: Cross multiply
    980,147.56x = 1,470,168.26 × 306,151.42
  4. Step 4: Simplify right side
    980,147.56x = 450,094,100,437.93
  5. Step 5: Solve for x
    x = 450,094,100,437.93/980,147.56
  6. Step 6: Final answer
    x = 459,210.55

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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.