Home / 1,214,082.72-1,821,128.40-372,634.56

Finding the Fourth Proportional to 1,214,082.72, 1,821,128.40 and 372,634.56

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Solution

The fourth proportional to 1,214,082.72, 1,821,128.40 and 372,634.56 is: 558,953.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,082.72 : 1,821,128.40 = 372,634.56 : x
  2. Step 2: Convert to fraction form
    1,214,082.72/1,821,128.40 = 372,634.56/x
  3. Step 3: Cross multiply
    1,214,082.72x = 1,821,128.40 × 372,634.56
  4. Step 4: Simplify right side
    1,214,082.72x = 678,615,380,037.50
  5. Step 5: Solve for x
    x = 678,615,380,037.50/1,214,082.72
  6. Step 6: Final answer
    x = 558,953.17

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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.