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Finding the Fourth Proportional to 658,573.92, 908,874 and 403,890.48

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Solution

The fourth proportional to 658,573.92, 908,874 and 403,890.48 is: 557,394.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,573.92 : 908,874 = 403,890.48 : x
  2. Step 2: Convert to fraction form
    658,573.92/908,874 = 403,890.48/x
  3. Step 3: Cross multiply
    658,573.92x = 908,874 × 403,890.48
  4. Step 4: Simplify right side
    658,573.92x = 367,085,556,119.52
  5. Step 5: Solve for x
    x = 367,085,556,119.52/658,573.92
  6. Step 6: Final answer
    x = 557,394.61

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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.