Home / 399,421.26-550,948.23-303,718.14

Finding the Fourth Proportional to 399,421.26, 550,948.23 and 303,718.14

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Solution

The fourth proportional to 399,421.26, 550,948.23 and 303,718.14 is: 418,938.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,421.26 : 550,948.23 = 303,718.14 : x
  2. Step 2: Convert to fraction form
    399,421.26/550,948.23 = 303,718.14/x
  3. Step 3: Cross multiply
    399,421.26x = 550,948.23 × 303,718.14
  4. Step 4: Simplify right side
    399,421.26x = 167,332,971,651.89
  5. Step 5: Solve for x
    x = 167,332,971,651.89/399,421.26
  6. Step 6: Final answer
    x = 418,938.57

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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.