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Finding the Fourth Proportional to 545,171.19, 752,336.19 and 303,448.56

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Solution

The fourth proportional to 545,171.19, 752,336.19 and 303,448.56 is: 418,758.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,171.19 : 752,336.19 = 303,448.56 : x
  2. Step 2: Convert to fraction form
    545,171.19/752,336.19 = 303,448.56/x
  3. Step 3: Cross multiply
    545,171.19x = 752,336.19 × 303,448.56
  4. Step 4: Simplify right side
    545,171.19x = 228,295,333,491.39
  5. Step 5: Solve for x
    x = 228,295,333,491.39/545,171.19
  6. Step 6: Final answer
    x = 418,758.98

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Double scale
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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.