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Finding the Fourth Proportional to 723,307.04, 998,161.94 and 401,008.88

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Solution

The fourth proportional to 723,307.04, 998,161.94 and 401,008.88 is: 553,391.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,307.04 : 998,161.94 = 401,008.88 : x
  2. Step 2: Convert to fraction form
    723,307.04/998,161.94 = 401,008.88/x
  3. Step 3: Cross multiply
    723,307.04x = 998,161.94 × 401,008.88
  4. Step 4: Simplify right side
    723,307.04x = 400,271,801,618.03
  5. Step 5: Solve for x
    x = 400,271,801,618.03/723,307.04
  6. Step 6: Final answer
    x = 553,391.27

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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.