Home / 764,789.52-1,054,781.58-678,811.20

Finding the Fourth Proportional to 764,789.52, 1,054,781.58 and 678,811.20

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Solution

The fourth proportional to 764,789.52, 1,054,781.58 and 678,811.20 is: 936,202.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,789.52 : 1,054,781.58 = 678,811.20 : x
  2. Step 2: Convert to fraction form
    764,789.52/1,054,781.58 = 678,811.20/x
  3. Step 3: Cross multiply
    764,789.52x = 1,054,781.58 × 678,811.20
  4. Step 4: Simplify right side
    764,789.52x = 715,997,550,057.70
  5. Step 5: Solve for x
    x = 715,997,550,057.70/764,789.52
  6. Step 6: Final answer
    x = 936,202.09

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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.