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Finding the Fourth Proportional to 398,558.06, 595,504.28 and 384,605

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Solution

The fourth proportional to 398,558.06, 595,504.28 and 384,605 is: 574,656.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,558.06 : 595,504.28 = 384,605 : x
  2. Step 2: Convert to fraction form
    398,558.06/595,504.28 = 384,605/x
  3. Step 3: Cross multiply
    398,558.06x = 595,504.28 × 384,605
  4. Step 4: Simplify right side
    398,558.06x = 229,033,923,609.40
  5. Step 5: Solve for x
    x = 229,033,923,609.40/398,558.06
  6. Step 6: Final answer
    x = 574,656.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.