Home / 386,933.40-580,400.10-106,450.20

Finding the Fourth Proportional to 386,933.40, 580,400.10 and 106,450.20

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Solution

The fourth proportional to 386,933.40, 580,400.10 and 106,450.20 is: 159,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,933.40 : 580,400.10 = 106,450.20 : x
  2. Step 2: Convert to fraction form
    386,933.40/580,400.10 = 106,450.20/x
  3. Step 3: Cross multiply
    386,933.40x = 580,400.10 × 106,450.20
  4. Step 4: Simplify right side
    386,933.40x = 61,783,706,725.02
  5. Step 5: Solve for x
    x = 61,783,706,725.02/386,933.40
  6. Step 6: Final answer
    x = 159,675.30

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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.