Home / 380,005.11-524,479.32-271,403.55

Finding the Fourth Proportional to 380,005.11, 524,479.32 and 271,403.55

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Solution

The fourth proportional to 380,005.11, 524,479.32 and 271,403.55 is: 374,588.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,005.11 : 524,479.32 = 271,403.55 : x
  2. Step 2: Convert to fraction form
    380,005.11/524,479.32 = 271,403.55/x
  3. Step 3: Cross multiply
    380,005.11x = 524,479.32 × 271,403.55
  4. Step 4: Simplify right side
    380,005.11x = 142,345,549,349.59
  5. Step 5: Solve for x
    x = 142,345,549,349.59/380,005.11
  6. Step 6: Final answer
    x = 374,588.51

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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.