Home / 380,629.65-525,149.55-219,462.87

Finding the Fourth Proportional to 380,629.65, 525,149.55 and 219,462.87

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Solution

The fourth proportional to 380,629.65, 525,149.55 and 219,462.87 is: 302,789.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,629.65 : 525,149.55 = 219,462.87 : x
  2. Step 2: Convert to fraction form
    380,629.65/525,149.55 = 219,462.87/x
  3. Step 3: Cross multiply
    380,629.65x = 525,149.55 × 219,462.87
  4. Step 4: Simplify right side
    380,629.65x = 115,250,827,422.21
  5. Step 5: Solve for x
    x = 115,250,827,422.21/380,629.65
  6. Step 6: Final answer
    x = 302,789.94

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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.