Home / 683,855.40-1,025,461-399,628.04

Finding the Fourth Proportional to 683,855.40, 1,025,461 and 399,628.04

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Solution

The fourth proportional to 683,855.40, 1,025,461 and 399,628.04 is: 599,253.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,855.40 : 1,025,461 = 399,628.04 : x
  2. Step 2: Convert to fraction form
    683,855.40/1,025,461 = 399,628.04/x
  3. Step 3: Cross multiply
    683,855.40x = 1,025,461 × 399,628.04
  4. Step 4: Simplify right side
    683,855.40x = 409,802,969,526.44
  5. Step 5: Solve for x
    x = 409,802,969,526.44/683,855.40
  6. Step 6: Final answer
    x = 599,253.83

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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.