Home / 854,694.02-1,179,513.42-492,108.86

Finding the Fourth Proportional to 854,694.02, 1,179,513.42 and 492,108.86

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Solution

The fourth proportional to 854,694.02, 1,179,513.42 and 492,108.86 is: 679,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,694.02 : 1,179,513.42 = 492,108.86 : x
  2. Step 2: Convert to fraction form
    854,694.02/1,179,513.42 = 492,108.86/x
  3. Step 3: Cross multiply
    854,694.02x = 1,179,513.42 × 492,108.86
  4. Step 4: Simplify right side
    854,694.02x = 580,449,004,470.90
  5. Step 5: Solve for x
    x = 580,449,004,470.90/854,694.02
  6. Step 6: Final answer
    x = 679,130.77

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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.