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Finding the Fourth Proportional to 545,511.78, 752,752.37 and 303,816.84

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Solution

The fourth proportional to 545,511.78, 752,752.37 and 303,816.84 is: 419,237.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,511.78 : 752,752.37 = 303,816.84 : x
  2. Step 2: Convert to fraction form
    545,511.78/752,752.37 = 303,816.84/x
  3. Step 3: Cross multiply
    545,511.78x = 752,752.37 × 303,816.84
  4. Step 4: Simplify right side
    545,511.78x = 228,698,844,836.83
  5. Step 5: Solve for x
    x = 228,698,844,836.83/545,511.78
  6. Step 6: Final answer
    x = 419,237.22

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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.