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Finding the Fourth Proportional to 723,630.68, 998,671.64 and 401,444.56

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Solution

The fourth proportional to 723,630.68, 998,671.64 and 401,444.56 is: 554,027.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,630.68 : 998,671.64 = 401,444.56 : x
  2. Step 2: Convert to fraction form
    723,630.68/998,671.64 = 401,444.56/x
  3. Step 3: Cross multiply
    723,630.68x = 998,671.64 × 401,444.56
  4. Step 4: Simplify right side
    723,630.68x = 400,911,297,104.28
  5. Step 5: Solve for x
    x = 400,911,297,104.28/723,630.68
  6. Step 6: Final answer
    x = 554,027.50

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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.