Home / 380,414.57-524,972.07-210,648.69

Finding the Fourth Proportional to 380,414.57, 524,972.07 and 210,648.69

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Solution

The fourth proportional to 380,414.57, 524,972.07 and 210,648.69 is: 290,695.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,414.57 : 524,972.07 = 210,648.69 : x
  2. Step 2: Convert to fraction form
    380,414.57/524,972.07 = 210,648.69/x
  3. Step 3: Cross multiply
    380,414.57x = 524,972.07 × 210,648.69
  4. Step 4: Simplify right side
    380,414.57x = 110,584,678,832.09
  5. Step 5: Solve for x
    x = 110,584,678,832.09/380,414.57
  6. Step 6: Final answer
    x = 290,695.18

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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.