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Finding the Fourth Proportional to 545,999.20, 755,998.32 and 504,008.80

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Solution

The fourth proportional to 545,999.20, 755,998.32 and 504,008.80 is: 697,857.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,999.20 : 755,998.32 = 504,008.80 : x
  2. Step 2: Convert to fraction form
    545,999.20/755,998.32 = 504,008.80/x
  3. Step 3: Cross multiply
    545,999.20x = 755,998.32 × 504,008.80
  4. Step 4: Simplify right side
    545,999.20x = 381,029,806,065.22
  5. Step 5: Solve for x
    x = 381,029,806,065.22/545,999.20
  6. Step 6: Final answer
    x = 697,857.81

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1.5x scale

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.