Home / 727,997.45-1,004,639.85-422,254.85

Finding the Fourth Proportional to 727,997.45, 1,004,639.85 and 422,254.85

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Solution

The fourth proportional to 727,997.45, 1,004,639.85 and 422,254.85 is: 582,713.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,997.45 : 1,004,639.85 = 422,254.85 : x
  2. Step 2: Convert to fraction form
    727,997.45/1,004,639.85 = 422,254.85/x
  3. Step 3: Cross multiply
    727,997.45x = 1,004,639.85 × 422,254.85
  4. Step 4: Simplify right side
    727,997.45x = 424,214,049,165.77
  5. Step 5: Solve for x
    x = 424,214,049,165.77/727,997.45
  6. Step 6: Final answer
    x = 582,713.65

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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.