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Finding the Fourth Proportional to 723,424.50, 998,337.97 and 401,148.02

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Solution

The fourth proportional to 723,424.50, 998,337.97 and 401,148.02 is: 553,591.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,424.50 : 998,337.97 = 401,148.02 : x
  2. Step 2: Convert to fraction form
    723,424.50/998,337.97 = 401,148.02/x
  3. Step 3: Cross multiply
    723,424.50x = 998,337.97 × 401,148.02
  4. Step 4: Simplify right side
    723,424.50x = 400,481,299,956.32
  5. Step 5: Solve for x
    x = 400,481,299,956.32/723,424.50
  6. Step 6: Final answer
    x = 553,591.01

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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.