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Finding the Fourth Proportional to 481,749.84, 664,443.72 and 290,563.92

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Solution

The fourth proportional to 481,749.84, 664,443.72 and 290,563.92 is: 400,754.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,749.84 : 664,443.72 = 290,563.92 : x
  2. Step 2: Convert to fraction form
    481,749.84/664,443.72 = 290,563.92/x
  3. Step 3: Cross multiply
    481,749.84x = 664,443.72 × 290,563.92
  4. Step 4: Simplify right side
    481,749.84x = 193,063,371,902.58
  5. Step 5: Solve for x
    x = 193,063,371,902.58/481,749.84
  6. Step 6: Final answer
    x = 400,754.41

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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.