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Finding the Fourth Proportional to 658,794.35, 909,138.65 and 383,218.33

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Solution

The fourth proportional to 658,794.35, 909,138.65 and 383,218.33 is: 528,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,794.35 : 909,138.65 = 383,218.33 : x
  2. Step 2: Convert to fraction form
    658,794.35/909,138.65 = 383,218.33/x
  3. Step 3: Cross multiply
    658,794.35x = 909,138.65 × 383,218.33
  4. Step 4: Simplify right side
    658,794.35x = 348,398,592,573.85
  5. Step 5: Solve for x
    x = 348,398,592,573.85/658,794.35
  6. Step 6: Final answer
    x = 528,842.71

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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.