Home / 420,918.55-580,880.36-229,944.24

Finding the Fourth Proportional to 420,918.55, 580,880.36 and 229,944.24

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Solution

The fourth proportional to 420,918.55, 580,880.36 and 229,944.24 is: 317,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,918.55 : 580,880.36 = 229,944.24 : x
  2. Step 2: Convert to fraction form
    420,918.55/580,880.36 = 229,944.24/x
  3. Step 3: Cross multiply
    420,918.55x = 580,880.36 × 229,944.24
  4. Step 4: Simplify right side
    420,918.55x = 133,570,093,485.99
  5. Step 5: Solve for x
    x = 133,570,093,485.99/420,918.55
  6. Step 6: Final answer
    x = 317,330.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.