Home / 807,631.80-1,211,447.70-727,452.60

Finding the Fourth Proportional to 807,631.80, 1,211,447.70 and 727,452.60

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Solution

The fourth proportional to 807,631.80, 1,211,447.70 and 727,452.60 is: 1,091,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,631.80 : 1,211,447.70 = 727,452.60 : x
  2. Step 2: Convert to fraction form
    807,631.80/1,211,447.70 = 727,452.60/x
  3. Step 3: Cross multiply
    807,631.80x = 1,211,447.70 × 727,452.60
  4. Step 4: Simplify right side
    807,631.80x = 881,270,779,129.02
  5. Step 5: Solve for x
    x = 881,270,779,129.02/807,631.80
  6. Step 6: Final answer
    x = 1,091,178.90

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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.