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Finding the Fourth Proportional to 543,007.50, 749,338.88 and 301,284.88

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Solution

The fourth proportional to 543,007.50, 749,338.88 and 301,284.88 is: 415,766.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,007.50 : 749,338.88 = 301,284.88 : x
  2. Step 2: Convert to fraction form
    543,007.50/749,338.88 = 301,284.88/x
  3. Step 3: Cross multiply
    543,007.50x = 749,338.88 × 301,284.88
  4. Step 4: Simplify right side
    543,007.50x = 225,764,474,540.13
  5. Step 5: Solve for x
    x = 225,764,474,540.13/543,007.50
  6. Step 6: Final answer
    x = 415,766.77

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1.5x scale

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.