Home / 380,394.56-524,944.48-210,628.64

Finding the Fourth Proportional to 380,394.56, 524,944.48 and 210,628.64

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Solution

The fourth proportional to 380,394.56, 524,944.48 and 210,628.64 is: 290,667.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,394.56 : 524,944.48 = 210,628.64 : x
  2. Step 2: Convert to fraction form
    380,394.56/524,944.48 = 210,628.64/x
  3. Step 3: Cross multiply
    380,394.56x = 524,944.48 × 210,628.64
  4. Step 4: Simplify right side
    380,394.56x = 110,568,341,897.91
  5. Step 5: Solve for x
    x = 110,568,341,897.91/380,394.56
  6. Step 6: Final answer
    x = 290,667.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.