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Finding the Fourth Proportional to 543,007.01, 749,338.20 and 301,284.38

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Solution

The fourth proportional to 543,007.01, 749,338.20 and 301,284.38 is: 415,766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,007.01 : 749,338.20 = 301,284.38 : x
  2. Step 2: Convert to fraction form
    543,007.01/749,338.20 = 301,284.38/x
  3. Step 3: Cross multiply
    543,007.01x = 749,338.20 × 301,284.38
  4. Step 4: Simplify right side
    543,007.01x = 225,763,891,250.63
  5. Step 5: Solve for x
    x = 225,763,891,250.63/543,007.01
  6. Step 6: Final answer
    x = 415,766.08

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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.