Home / 782,238.96-1,079,400.44-438,027.02

Finding the Fourth Proportional to 782,238.96, 1,079,400.44 and 438,027.02

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Solution

The fourth proportional to 782,238.96, 1,079,400.44 and 438,027.02 is: 604,427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,238.96 : 1,079,400.44 = 438,027.02 : x
  2. Step 2: Convert to fraction form
    782,238.96/1,079,400.44 = 438,027.02/x
  3. Step 3: Cross multiply
    782,238.96x = 1,079,400.44 × 438,027.02
  4. Step 4: Simplify right side
    782,238.96x = 472,806,558,119.89
  5. Step 5: Solve for x
    x = 472,806,558,119.89/782,238.96
  6. Step 6: Final answer
    x = 604,427.27

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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.