Home / 980,538.96-1,470,429.36-381,419.22

Finding the Fourth Proportional to 980,538.96, 1,470,429.36 and 381,419.22

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Solution

The fourth proportional to 980,538.96, 1,470,429.36 and 381,419.22 is: 571,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,538.96 : 1,470,429.36 = 381,419.22 : x
  2. Step 2: Convert to fraction form
    980,538.96/1,470,429.36 = 381,419.22/x
  3. Step 3: Cross multiply
    980,538.96x = 1,470,429.36 × 381,419.22
  4. Step 4: Simplify right side
    980,538.96x = 560,850,019,556.30
  5. Step 5: Solve for x
    x = 560,850,019,556.30/980,538.96
  6. Step 6: Final answer
    x = 571,981.37

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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.