Home / 780,558.31-1,171,280.34-307,575.82

Finding the Fourth Proportional to 780,558.31, 1,171,280.34 and 307,575.82

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Solution

The fourth proportional to 780,558.31, 1,171,280.34 and 307,575.82 is: 461,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,558.31 : 1,171,280.34 = 307,575.82 : x
  2. Step 2: Convert to fraction form
    780,558.31/1,171,280.34 = 307,575.82/x
  3. Step 3: Cross multiply
    780,558.31x = 1,171,280.34 × 307,575.82
  4. Step 4: Simplify right side
    780,558.31x = 360,257,511,025.38
  5. Step 5: Solve for x
    x = 360,257,511,025.38/780,558.31
  6. Step 6: Final answer
    x = 461,538.24

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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.