Home / 672,112.20-1,008,168.30-620,790.60

Finding the Fourth Proportional to 672,112.20, 1,008,168.30 and 620,790.60

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Solution

The fourth proportional to 672,112.20, 1,008,168.30 and 620,790.60 is: 931,185.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,112.20 : 1,008,168.30 = 620,790.60 : x
  2. Step 2: Convert to fraction form
    672,112.20/1,008,168.30 = 620,790.60/x
  3. Step 3: Cross multiply
    672,112.20x = 1,008,168.30 × 620,790.60
  4. Step 4: Simplify right side
    672,112.20x = 625,861,403,857.98
  5. Step 5: Solve for x
    x = 625,861,403,857.98/672,112.20
  6. Step 6: Final answer
    x = 931,185.90

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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.