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Finding the Fourth Proportional to 497,070.60, 685,974.60 and 282,203.52

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Solution

The fourth proportional to 497,070.60, 685,974.60 and 282,203.52 is: 389,450.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,070.60 : 685,974.60 = 282,203.52 : x
  2. Step 2: Convert to fraction form
    497,070.60/685,974.60 = 282,203.52/x
  3. Step 3: Cross multiply
    497,070.60x = 685,974.60 × 282,203.52
  4. Step 4: Simplify right side
    497,070.60x = 193,584,446,750.59
  5. Step 5: Solve for x
    x = 193,584,446,750.59/497,070.60
  6. Step 6: Final answer
    x = 389,450.61

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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.