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Finding the Fourth Proportional to 723,762.84, 998,789.04 and 401,469.60

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Solution

The fourth proportional to 723,762.84, 998,789.04 and 401,469.60 is: 554,026.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,762.84 : 998,789.04 = 401,469.60 : x
  2. Step 2: Convert to fraction form
    723,762.84/998,789.04 = 401,469.60/x
  3. Step 3: Cross multiply
    723,762.84x = 998,789.04 × 401,469.60
  4. Step 4: Simplify right side
    723,762.84x = 400,983,436,373.18
  5. Step 5: Solve for x
    x = 400,983,436,373.18/723,762.84
  6. Step 6: Final answer
    x = 554,026.01

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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.