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Finding the Fourth Proportional to 543,334.40, 749,765.40 and 301,605.02

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Solution

The fourth proportional to 543,334.40, 749,765.40 and 301,605.02 is: 416,194.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,334.40 : 749,765.40 = 301,605.02 : x
  2. Step 2: Convert to fraction form
    543,334.40/749,765.40 = 301,605.02/x
  3. Step 3: Cross multiply
    543,334.40x = 749,765.40 × 301,605.02
  4. Step 4: Simplify right side
    543,334.40x = 226,133,008,462.31
  5. Step 5: Solve for x
    x = 226,133,008,462.31/543,334.40
  6. Step 6: Final answer
    x = 416,194.90

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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.