Home / 721,810.60-1,082,865.36-216,351.16

Finding the Fourth Proportional to 721,810.60, 1,082,865.36 and 216,351.16

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Solution

The fourth proportional to 721,810.60, 1,082,865.36 and 216,351.16 is: 324,571.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,810.60 : 1,082,865.36 = 216,351.16 : x
  2. Step 2: Convert to fraction form
    721,810.60/1,082,865.36 = 216,351.16/x
  3. Step 3: Cross multiply
    721,810.60x = 1,082,865.36 × 216,351.16
  4. Step 4: Simplify right side
    721,810.60x = 234,279,176,759.82
  5. Step 5: Solve for x
    x = 234,279,176,759.82/721,810.60
  6. Step 6: Final answer
    x = 324,571.54

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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.