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Finding the Fourth Proportional to 489,466.59, 675,675.86 and 458,825.91

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Solution

The fourth proportional to 489,466.59, 675,675.86 and 458,825.91 is: 633,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,466.59 : 675,675.86 = 458,825.91 : x
  2. Step 2: Convert to fraction form
    489,466.59/675,675.86 = 458,825.91/x
  3. Step 3: Cross multiply
    489,466.59x = 675,675.86 × 458,825.91
  4. Step 4: Simplify right side
    489,466.59x = 310,017,589,035.40
  5. Step 5: Solve for x
    x = 310,017,589,035.40/489,466.59
  6. Step 6: Final answer
    x = 633,378.45

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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.