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Finding the Fourth Proportional to 543,097.80, 749,488.64 and 301,390.56

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Solution

The fourth proportional to 543,097.80, 749,488.64 and 301,390.56 is: 415,926.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,097.80 : 749,488.64 = 301,390.56 : x
  2. Step 2: Convert to fraction form
    543,097.80/749,488.64 = 301,390.56/x
  3. Step 3: Cross multiply
    543,097.80x = 749,488.64 × 301,390.56
  4. Step 4: Simplify right side
    543,097.80x = 225,888,800,923.24
  5. Step 5: Solve for x
    x = 225,888,800,923.24/543,097.80
  6. Step 6: Final answer
    x = 415,926.56

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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.