Home / 509,775.96-764,789.72-253,730.52

Finding the Fourth Proportional to 509,775.96, 764,789.72 and 253,730.52

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Solution

The fourth proportional to 509,775.96, 764,789.72 and 253,730.52 is: 380,658.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,775.96 : 764,789.72 = 253,730.52 : x
  2. Step 2: Convert to fraction form
    509,775.96/764,789.72 = 253,730.52/x
  3. Step 3: Cross multiply
    509,775.96x = 764,789.72 × 253,730.52
  4. Step 4: Simplify right side
    509,775.96x = 194,050,493,346.25
  5. Step 5: Solve for x
    x = 194,050,493,346.25/509,775.96
  6. Step 6: Final answer
    x = 380,658.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.