Home / 807,325.56-1,211,016.05-427,732.83

Finding the Fourth Proportional to 807,325.56, 1,211,016.05 and 427,732.83

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Solution

The fourth proportional to 807,325.56, 1,211,016.05 and 427,732.83 is: 641,613.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,325.56 : 1,211,016.05 = 427,732.83 : x
  2. Step 2: Convert to fraction form
    807,325.56/1,211,016.05 = 427,732.83/x
  3. Step 3: Cross multiply
    807,325.56x = 1,211,016.05 × 427,732.83
  4. Step 4: Simplify right side
    807,325.56x = 517,991,320,103.26
  5. Step 5: Solve for x
    x = 517,991,320,103.26/807,325.56
  6. Step 6: Final answer
    x = 641,613.92

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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.