Home / 723,517.65-998,457.03-401,257.53

Finding the Fourth Proportional to 723,517.65, 998,457.03 and 401,257.53

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Solution

The fourth proportional to 723,517.65, 998,457.03 and 401,257.53 is: 553,736.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,517.65 : 998,457.03 = 401,257.53 : x
  2. Step 2: Convert to fraction form
    723,517.65/998,457.03 = 401,257.53/x
  3. Step 3: Cross multiply
    723,517.65x = 998,457.03 × 401,257.53
  4. Step 4: Simplify right side
    723,517.65x = 400,638,401,668.94
  5. Step 5: Solve for x
    x = 400,638,401,668.94/723,517.65
  6. Step 6: Final answer
    x = 553,736.87

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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.