Home / 721,876.80-1,082,604.96-216,417.60

Finding the Fourth Proportional to 721,876.80, 1,082,604.96 and 216,417.60

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Solution

The fourth proportional to 721,876.80, 1,082,604.96 and 216,417.60 is: 324,563.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,876.80 : 1,082,604.96 = 216,417.60 : x
  2. Step 2: Convert to fraction form
    721,876.80/1,082,604.96 = 216,417.60/x
  3. Step 3: Cross multiply
    721,876.80x = 1,082,604.96 × 216,417.60
  4. Step 4: Simplify right side
    721,876.80x = 234,294,767,191.30
  5. Step 5: Solve for x
    x = 234,294,767,191.30/721,876.80
  6. Step 6: Final answer
    x = 324,563.37

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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.