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Finding the Fourth Proportional to 483,625.73, 721,888.75 and 447,999.50

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Solution

The fourth proportional to 483,625.73, 721,888.75 and 447,999.50 is: 668,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,625.73 : 721,888.75 = 447,999.50 : x
  2. Step 2: Convert to fraction form
    483,625.73/721,888.75 = 447,999.50/x
  3. Step 3: Cross multiply
    483,625.73x = 721,888.75 × 447,999.50
  4. Step 4: Simplify right side
    483,625.73x = 323,405,799,055.63
  5. Step 5: Solve for x
    x = 323,405,799,055.63/483,625.73
  6. Step 6: Final answer
    x = 668,710.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.