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Finding the Fourth Proportional to 504,163.04, 755,457.03 and 428,973.98

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Solution

The fourth proportional to 504,163.04, 755,457.03 and 428,973.98 is: 642,790.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,163.04 : 755,457.03 = 428,973.98 : x
  2. Step 2: Convert to fraction form
    504,163.04/755,457.03 = 428,973.98/x
  3. Step 3: Cross multiply
    504,163.04x = 755,457.03 × 428,973.98
  4. Step 4: Simplify right side
    504,163.04x = 324,071,405,100.79
  5. Step 5: Solve for x
    x = 324,071,405,100.79/504,163.04
  6. Step 6: Final answer
    x = 642,790.89

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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.