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Finding the Fourth Proportional to 545,699.83, 752,965.80 and 303,976.39

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Solution

The fourth proportional to 545,699.83, 752,965.80 and 303,976.39 is: 419,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,699.83 : 752,965.80 = 303,976.39 : x
  2. Step 2: Convert to fraction form
    545,699.83/752,965.80 = 303,976.39/x
  3. Step 3: Cross multiply
    545,699.83x = 752,965.80 × 303,976.39
  4. Step 4: Simplify right side
    545,699.83x = 228,883,825,677.46
  5. Step 5: Solve for x
    x = 228,883,825,677.46/545,699.83
  6. Step 6: Final answer
    x = 419,431.73

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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.