Home / 420,986.88-580,967.04-230,002.56

Finding the Fourth Proportional to 420,986.88, 580,967.04 and 230,002.56

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Solution

The fourth proportional to 420,986.88, 580,967.04 and 230,002.56 is: 317,406.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,986.88 : 580,967.04 = 230,002.56 : x
  2. Step 2: Convert to fraction form
    420,986.88/580,967.04 = 230,002.56/x
  3. Step 3: Cross multiply
    420,986.88x = 580,967.04 × 230,002.56
  4. Step 4: Simplify right side
    420,986.88x = 133,623,906,475.62
  5. Step 5: Solve for x
    x = 133,623,906,475.62/420,986.88
  6. Step 6: Final answer
    x = 317,406.34

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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.