Home / 820,299.88-1,230,613.98-346,983.40

Finding the Fourth Proportional to 820,299.88, 1,230,613.98 and 346,983.40

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Solution

The fourth proportional to 820,299.88, 1,230,613.98 and 346,983.40 is: 520,544.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,299.88 : 1,230,613.98 = 346,983.40 : x
  2. Step 2: Convert to fraction form
    820,299.88/1,230,613.98 = 346,983.40/x
  3. Step 3: Cross multiply
    820,299.88x = 1,230,613.98 × 346,983.40
  4. Step 4: Simplify right side
    820,299.88x = 427,002,622,867.93
  5. Step 5: Solve for x
    x = 427,002,622,867.93/820,299.88
  6. Step 6: Final answer
    x = 520,544.54

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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.