Home / 862,942.56-1,190,828.25-500,381.70

Finding the Fourth Proportional to 862,942.56, 1,190,828.25 and 500,381.70

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Solution

The fourth proportional to 862,942.56, 1,190,828.25 and 500,381.70 is: 690,507.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,942.56 : 1,190,828.25 = 500,381.70 : x
  2. Step 2: Convert to fraction form
    862,942.56/1,190,828.25 = 500,381.70/x
  3. Step 3: Cross multiply
    862,942.56x = 1,190,828.25 × 500,381.70
  4. Step 4: Simplify right side
    862,942.56x = 595,868,664,143.03
  5. Step 5: Solve for x
    x = 595,868,664,143.03/862,942.56
  6. Step 6: Final answer
    x = 690,507.91

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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.