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Finding the Fourth Proportional to 489,955.20, 735,116.16 and 333,657.60

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Solution

The fourth proportional to 489,955.20, 735,116.16 and 333,657.60 is: 500,611.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,955.20 : 735,116.16 = 333,657.60 : x
  2. Step 2: Convert to fraction form
    489,955.20/735,116.16 = 333,657.60/x
  3. Step 3: Cross multiply
    489,955.20x = 735,116.16 × 333,657.60
  4. Step 4: Simplify right side
    489,955.20x = 245,277,093,666.82
  5. Step 5: Solve for x
    x = 245,277,093,666.82/489,955.20
  6. Step 6: Final answer
    x = 500,611.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.