Home / 854,689.77-1,179,507.56-492,104.61

Finding the Fourth Proportional to 854,689.77, 1,179,507.56 and 492,104.61

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Solution

The fourth proportional to 854,689.77, 1,179,507.56 and 492,104.61 is: 679,124.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,689.77 : 1,179,507.56 = 492,104.61 : x
  2. Step 2: Convert to fraction form
    854,689.77/1,179,507.56 = 492,104.61/x
  3. Step 3: Cross multiply
    854,689.77x = 1,179,507.56 × 492,104.61
  4. Step 4: Simplify right side
    854,689.77x = 580,441,105,345.33
  5. Step 5: Solve for x
    x = 580,441,105,345.33/854,689.77
  6. Step 6: Final answer
    x = 679,124.90

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1.5x scale

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.