Home / 776,678.68-1,165,150.86-355,990.60

Finding the Fourth Proportional to 776,678.68, 1,165,150.86 and 355,990.60

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Solution

The fourth proportional to 776,678.68, 1,165,150.86 and 355,990.60 is: 534,046.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,678.68 : 1,165,150.86 = 355,990.60 : x
  2. Step 2: Convert to fraction form
    776,678.68/1,165,150.86 = 355,990.60/x
  3. Step 3: Cross multiply
    776,678.68x = 1,165,150.86 × 355,990.60
  4. Step 4: Simplify right side
    776,678.68x = 414,782,753,741.92
  5. Step 5: Solve for x
    x = 414,782,753,741.92/776,678.68
  6. Step 6: Final answer
    x = 534,046.79

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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.