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Finding the Fourth Proportional to 723,682.95, 998,802.05 and 401,496.85

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Solution

The fourth proportional to 723,682.95, 998,802.05 and 401,496.85 is: 554,131.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,682.95 : 998,802.05 = 401,496.85 : x
  2. Step 2: Convert to fraction form
    723,682.95/998,802.05 = 401,496.85/x
  3. Step 3: Cross multiply
    723,682.95x = 998,802.05 × 401,496.85
  4. Step 4: Simplify right side
    723,682.95x = 401,015,874,841.06
  5. Step 5: Solve for x
    x = 401,015,874,841.06/723,682.95
  6. Step 6: Final answer
    x = 554,131.99

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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.