Home / 782,518.32-1,173,777.48-427,338.59

Finding the Fourth Proportional to 782,518.32, 1,173,777.48 and 427,338.59

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Solution

The fourth proportional to 782,518.32, 1,173,777.48 and 427,338.59 is: 641,007.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,518.32 : 1,173,777.48 = 427,338.59 : x
  2. Step 2: Convert to fraction form
    782,518.32/1,173,777.48 = 427,338.59/x
  3. Step 3: Cross multiply
    782,518.32x = 1,173,777.48 × 427,338.59
  4. Step 4: Simplify right side
    782,518.32x = 501,600,407,408.07
  5. Step 5: Solve for x
    x = 501,600,407,408.07/782,518.32
  6. Step 6: Final answer
    x = 641,007.88

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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.