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Finding the Fourth Proportional to 545,571.09, 752,911.38 and 303,853.68

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Solution

The fourth proportional to 545,571.09, 752,911.38 and 303,853.68 is: 419,331.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,571.09 : 752,911.38 = 303,853.68 : x
  2. Step 2: Convert to fraction form
    545,571.09/752,911.38 = 303,853.68/x
  3. Step 3: Cross multiply
    545,571.09x = 752,911.38 × 303,853.68
  4. Step 4: Simplify right side
    545,571.09x = 228,774,893,526.88
  5. Step 5: Solve for x
    x = 228,774,893,526.88/545,571.09
  6. Step 6: Final answer
    x = 419,331.04

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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.