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Finding the Fourth Proportional to 481,358.84, 664,271.70 and 290,477.48

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Solution

The fourth proportional to 481,358.84, 664,271.70 and 290,477.48 is: 400,856.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,358.84 : 664,271.70 = 290,477.48 : x
  2. Step 2: Convert to fraction form
    481,358.84/664,271.70 = 290,477.48/x
  3. Step 3: Cross multiply
    481,358.84x = 664,271.70 × 290,477.48
  4. Step 4: Simplify right side
    481,358.84x = 192,955,969,451.32
  5. Step 5: Solve for x
    x = 192,955,969,451.32/481,358.84
  6. Step 6: Final answer
    x = 400,856.81

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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.