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Finding the Fourth Proportional to 621,182.46, 930,848.46 and 321,262.56

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Solution

The fourth proportional to 621,182.46, 930,848.46 and 321,262.56 is: 481,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,182.46 : 930,848.46 = 321,262.56 : x
  2. Step 2: Convert to fraction form
    621,182.46/930,848.46 = 321,262.56/x
  3. Step 3: Cross multiply
    621,182.46x = 930,848.46 × 321,262.56
  4. Step 4: Simplify right side
    621,182.46x = 299,046,759,231.66
  5. Step 5: Solve for x
    x = 299,046,759,231.66/621,182.46
  6. Step 6: Final answer
    x = 481,415.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.