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Finding the Fourth Proportional to 723,294.05, 998,169.50 and 401,034.20

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Solution

The fourth proportional to 723,294.05, 998,169.50 and 401,034.20 is: 553,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,294.05 : 998,169.50 = 401,034.20 : x
  2. Step 2: Convert to fraction form
    723,294.05/998,169.50 = 401,034.20/x
  3. Step 3: Cross multiply
    723,294.05x = 998,169.50 × 401,034.20
  4. Step 4: Simplify right side
    723,294.05x = 400,300,106,896.90
  5. Step 5: Solve for x
    x = 400,300,106,896.90/723,294.05
  6. Step 6: Final answer
    x = 553,440.34

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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.