Home / 679,732.86-1,019,533.07-206,422.32

Finding the Fourth Proportional to 679,732.86, 1,019,533.07 and 206,422.32

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Solution

The fourth proportional to 679,732.86, 1,019,533.07 and 206,422.32 is: 309,613.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,732.86 : 1,019,533.07 = 206,422.32 : x
  2. Step 2: Convert to fraction form
    679,732.86/1,019,533.07 = 206,422.32/x
  3. Step 3: Cross multiply
    679,732.86x = 1,019,533.07 × 206,422.32
  4. Step 4: Simplify right side
    679,732.86x = 210,454,380,594.01
  5. Step 5: Solve for x
    x = 210,454,380,594.01/679,732.86
  6. Step 6: Final answer
    x = 309,613.37

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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.