Home / 679,516.28-1,019,397.46-279,935

Finding the Fourth Proportional to 679,516.28, 1,019,397.46 and 279,935

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Solution

The fourth proportional to 679,516.28, 1,019,397.46 and 279,935 is: 419,953.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,516.28 : 1,019,397.46 = 279,935 : x
  2. Step 2: Convert to fraction form
    679,516.28/1,019,397.46 = 279,935/x
  3. Step 3: Cross multiply
    679,516.28x = 1,019,397.46 × 279,935
  4. Step 4: Simplify right side
    679,516.28x = 285,365,027,965.10
  5. Step 5: Solve for x
    x = 285,365,027,965.10/679,516.28
  6. Step 6: Final answer
    x = 419,953.19

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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.