Home / 413,623.80-620,435.70-271,906.20

Finding the Fourth Proportional to 413,623.80, 620,435.70 and 271,906.20

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Solution

The fourth proportional to 413,623.80, 620,435.70 and 271,906.20 is: 407,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,623.80 : 620,435.70 = 271,906.20 : x
  2. Step 2: Convert to fraction form
    413,623.80/620,435.70 = 271,906.20/x
  3. Step 3: Cross multiply
    413,623.80x = 620,435.70 × 271,906.20
  4. Step 4: Simplify right side
    413,623.80x = 168,700,313,531.34
  5. Step 5: Solve for x
    x = 168,700,313,531.34/413,623.80
  6. Step 6: Final answer
    x = 407,859.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.