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Finding the Fourth Proportional to 511,611.20, 767,762.40 and 333,684.80

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Solution

The fourth proportional to 511,611.20, 767,762.40 and 333,684.80 is: 500,752.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,611.20 : 767,762.40 = 333,684.80 : x
  2. Step 2: Convert to fraction form
    511,611.20/767,762.40 = 333,684.80/x
  3. Step 3: Cross multiply
    511,611.20x = 767,762.40 × 333,684.80
  4. Step 4: Simplify right side
    511,611.20x = 256,190,642,891.52
  5. Step 5: Solve for x
    x = 256,190,642,891.52/511,611.20
  6. Step 6: Final answer
    x = 500,752.61

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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.