Home / 380,414.27-524,987.53-210,648.40

Finding the Fourth Proportional to 380,414.27, 524,987.53 and 210,648.40

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Solution

The fourth proportional to 380,414.27, 524,987.53 and 210,648.40 is: 290,703.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,414.27 : 524,987.53 = 210,648.40 : x
  2. Step 2: Convert to fraction form
    380,414.27/524,987.53 = 210,648.40/x
  3. Step 3: Cross multiply
    380,414.27x = 524,987.53 × 210,648.40
  4. Step 4: Simplify right side
    380,414.27x = 110,587,781,375.36
  5. Step 5: Solve for x
    x = 110,587,781,375.36/380,414.27
  6. Step 6: Final answer
    x = 290,703.55

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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.