Home / 380,628.76-571,297.38-193,780.12

Finding the Fourth Proportional to 380,628.76, 571,297.38 and 193,780.12

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Solution

The fourth proportional to 380,628.76, 571,297.38 and 193,780.12 is: 290,850.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,628.76 : 571,297.38 = 193,780.12 : x
  2. Step 2: Convert to fraction form
    380,628.76/571,297.38 = 193,780.12/x
  3. Step 3: Cross multiply
    380,628.76x = 571,297.38 × 193,780.12
  4. Step 4: Simplify right side
    380,628.76x = 110,706,074,852.09
  5. Step 5: Solve for x
    x = 110,706,074,852.09/380,628.76
  6. Step 6: Final answer
    x = 290,850.53

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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.