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Finding the Fourth Proportional to 483,761.20, 725,423.10 and 217,384.60

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Solution

The fourth proportional to 483,761.20, 725,423.10 and 217,384.60 is: 325,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,761.20 : 725,423.10 = 217,384.60 : x
  2. Step 2: Convert to fraction form
    483,761.20/725,423.10 = 217,384.60/x
  3. Step 3: Cross multiply
    483,761.20x = 725,423.10 × 217,384.60
  4. Step 4: Simplify right side
    483,761.20x = 157,695,810,424.26
  5. Step 5: Solve for x
    x = 157,695,810,424.26/483,761.20
  6. Step 6: Final answer
    x = 325,978.62

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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.