Home / 672,115.20-1,008,172.80-620,793.60

Finding the Fourth Proportional to 672,115.20, 1,008,172.80 and 620,793.60

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Solution

The fourth proportional to 672,115.20, 1,008,172.80 and 620,793.60 is: 931,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,115.20 : 1,008,172.80 = 620,793.60 : x
  2. Step 2: Convert to fraction form
    672,115.20/1,008,172.80 = 620,793.60/x
  3. Step 3: Cross multiply
    672,115.20x = 1,008,172.80 × 620,793.60
  4. Step 4: Simplify right side
    672,115.20x = 625,867,221,934.08
  5. Step 5: Solve for x
    x = 625,867,221,934.08/672,115.20
  6. Step 6: Final answer
    x = 931,190.40

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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.