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Finding the Fourth Proportional to 489,203.73, 675,133.08 and 282,480.85

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Solution

The fourth proportional to 489,203.73, 675,133.08 and 282,480.85 is: 389,842.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,203.73 : 675,133.08 = 282,480.85 : x
  2. Step 2: Convert to fraction form
    489,203.73/675,133.08 = 282,480.85/x
  3. Step 3: Cross multiply
    489,203.73x = 675,133.08 × 282,480.85
  4. Step 4: Simplify right side
    489,203.73x = 190,712,164,613.69
  5. Step 5: Solve for x
    x = 190,712,164,613.69/489,203.73
  6. Step 6: Final answer
    x = 389,842.01

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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.