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Finding the Fourth Proportional to 545,194.40, 752,390.37 and 303,461.64

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Solution

The fourth proportional to 545,194.40, 752,390.37 and 303,461.64 is: 418,789.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,194.40 : 752,390.37 = 303,461.64 : x
  2. Step 2: Convert to fraction form
    545,194.40/752,390.37 = 303,461.64/x
  3. Step 3: Cross multiply
    545,194.40x = 752,390.37 × 303,461.64
  4. Step 4: Simplify right side
    545,194.40x = 228,321,615,600.41
  5. Step 5: Solve for x
    x = 228,321,615,600.41/545,194.40
  6. Step 6: Final answer
    x = 418,789.37

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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.