Home / 862,231.96-1,189,880.34-499,865.88

Finding the Fourth Proportional to 862,231.96, 1,189,880.34 and 499,865.88

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Solution

The fourth proportional to 862,231.96, 1,189,880.34 and 499,865.88 is: 689,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,231.96 : 1,189,880.34 = 499,865.88 : x
  2. Step 2: Convert to fraction form
    862,231.96/1,189,880.34 = 499,865.88/x
  3. Step 3: Cross multiply
    862,231.96x = 1,189,880.34 × 499,865.88
  4. Step 4: Simplify right side
    862,231.96x = 594,780,583,248.80
  5. Step 5: Solve for x
    x = 594,780,583,248.80/862,231.96
  6. Step 6: Final answer
    x = 689,815.05

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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.