Home / 744,379.73-1,027,478.21-422,303.88

Finding the Fourth Proportional to 744,379.73, 1,027,478.21 and 422,303.88

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Solution

The fourth proportional to 744,379.73, 1,027,478.21 and 422,303.88 is: 582,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,379.73 : 1,027,478.21 = 422,303.88 : x
  2. Step 2: Convert to fraction form
    744,379.73/1,027,478.21 = 422,303.88/x
  3. Step 3: Cross multiply
    744,379.73x = 1,027,478.21 × 422,303.88
  4. Step 4: Simplify right side
    744,379.73x = 433,908,034,698.46
  5. Step 5: Solve for x
    x = 433,908,034,698.46/744,379.73
  6. Step 6: Final answer
    x = 582,912.21

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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.