Home / 1,185,713.25-1,778,016.12-427,454.83

Finding the Fourth Proportional to 1,185,713.25, 1,778,016.12 and 427,454.83

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Solution

The fourth proportional to 1,185,713.25, 1,778,016.12 and 427,454.83 is: 640,982.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,713.25 : 1,778,016.12 = 427,454.83 : x
  2. Step 2: Convert to fraction form
    1,185,713.25/1,778,016.12 = 427,454.83/x
  3. Step 3: Cross multiply
    1,185,713.25x = 1,778,016.12 × 427,454.83
  4. Step 4: Simplify right side
    1,185,713.25x = 760,021,578,311.86
  5. Step 5: Solve for x
    x = 760,021,578,311.86/1,185,713.25
  6. Step 6: Final answer
    x = 640,982.61

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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.