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Finding the Fourth Proportional to 480,546.12, 662,390.22 and 378,409.56

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Solution

The fourth proportional to 480,546.12, 662,390.22 and 378,409.56 is: 521,604.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,546.12 : 662,390.22 = 378,409.56 : x
  2. Step 2: Convert to fraction form
    480,546.12/662,390.22 = 378,409.56/x
  3. Step 3: Cross multiply
    480,546.12x = 662,390.22 × 378,409.56
  4. Step 4: Simplify right side
    480,546.12x = 250,654,791,698.50
  5. Step 5: Solve for x
    x = 250,654,791,698.50/480,546.12
  6. Step 6: Final answer
    x = 521,604.03

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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.