Home / 809,234.63-1,213,910.27-310,598.63

Finding the Fourth Proportional to 809,234.63, 1,213,910.27 and 310,598.63

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Solution

The fourth proportional to 809,234.63, 1,213,910.27 and 310,598.63 is: 465,920.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,234.63 : 1,213,910.27 = 310,598.63 : x
  2. Step 2: Convert to fraction form
    809,234.63/1,213,910.27 = 310,598.63/x
  3. Step 3: Cross multiply
    809,234.63x = 1,213,910.27 × 310,598.63
  4. Step 4: Simplify right side
    809,234.63x = 377,038,859,182.39
  5. Step 5: Solve for x
    x = 377,038,859,182.39/809,234.63
  6. Step 6: Final answer
    x = 465,920.32

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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.