Home / 420,985.86-580,960.96-230,002.44

Finding the Fourth Proportional to 420,985.86, 580,960.96 and 230,002.44

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Solution

The fourth proportional to 420,985.86, 580,960.96 and 230,002.44 is: 317,403.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,985.86 : 580,960.96 = 230,002.44 : x
  2. Step 2: Convert to fraction form
    420,985.86/580,960.96 = 230,002.44/x
  3. Step 3: Cross multiply
    420,985.86x = 580,960.96 × 230,002.44
  4. Step 4: Simplify right side
    420,985.86x = 133,622,438,344.74
  5. Step 5: Solve for x
    x = 133,622,438,344.74/420,985.86
  6. Step 6: Final answer
    x = 317,403.63

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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.