Home / 683,311.80-1,025,891.10-399,293.40

Finding the Fourth Proportional to 683,311.80, 1,025,891.10 and 399,293.40

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Solution

The fourth proportional to 683,311.80, 1,025,891.10 and 399,293.40 is: 599,479.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,311.80 : 1,025,891.10 = 399,293.40 : x
  2. Step 2: Convert to fraction form
    683,311.80/1,025,891.10 = 399,293.40/x
  3. Step 3: Cross multiply
    683,311.80x = 1,025,891.10 × 399,293.40
  4. Step 4: Simplify right side
    683,311.80x = 409,631,545,348.74
  5. Step 5: Solve for x
    x = 409,631,545,348.74/683,311.80
  6. Step 6: Final answer
    x = 599,479.69

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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.