Home / 699,318.90-1,047,025.17-378,322.92

Finding the Fourth Proportional to 699,318.90, 1,047,025.17 and 378,322.92

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Solution

The fourth proportional to 699,318.90, 1,047,025.17 and 378,322.92 is: 566,427.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,318.90 : 1,047,025.17 = 378,322.92 : x
  2. Step 2: Convert to fraction form
    699,318.90/1,047,025.17 = 378,322.92/x
  3. Step 3: Cross multiply
    699,318.90x = 1,047,025.17 × 378,322.92
  4. Step 4: Simplify right side
    699,318.90x = 396,113,619,627.90
  5. Step 5: Solve for x
    x = 396,113,619,627.90/699,318.90
  6. Step 6: Final answer
    x = 566,427.73

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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.