Home / 724,121.82-999,272.97-401,829.30

Finding the Fourth Proportional to 724,121.82, 999,272.97 and 401,829.30

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Solution

The fourth proportional to 724,121.82, 999,272.97 and 401,829.30 is: 554,516.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,121.82 : 999,272.97 = 401,829.30 : x
  2. Step 2: Convert to fraction form
    724,121.82/999,272.97 = 401,829.30/x
  3. Step 3: Cross multiply
    724,121.82x = 999,272.97 × 401,829.30
  4. Step 4: Simplify right side
    724,121.82x = 401,537,158,044.02
  5. Step 5: Solve for x
    x = 401,537,158,044.02/724,121.82
  6. Step 6: Final answer
    x = 554,516.03

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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.