Home / 380,439.56-524,987.60-219,284.84

Finding the Fourth Proportional to 380,439.56, 524,987.60 and 219,284.84

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Solution

The fourth proportional to 380,439.56, 524,987.60 and 219,284.84 is: 302,602.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,439.56 : 524,987.60 = 219,284.84 : x
  2. Step 2: Convert to fraction form
    380,439.56/524,987.60 = 219,284.84/x
  3. Step 3: Cross multiply
    380,439.56x = 524,987.60 × 219,284.84
  4. Step 4: Simplify right side
    380,439.56x = 115,121,821,867.98
  5. Step 5: Solve for x
    x = 115,121,821,867.98/380,439.56
  6. Step 6: Final answer
    x = 302,602.13

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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.