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Finding the Fourth Proportional to 480,450.54, 662,990.20 and 276,468.55

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Solution

The fourth proportional to 480,450.54, 662,990.20 and 276,468.55 is: 381,508.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,450.54 : 662,990.20 = 276,468.55 : x
  2. Step 2: Convert to fraction form
    480,450.54/662,990.20 = 276,468.55/x
  3. Step 3: Cross multiply
    480,450.54x = 662,990.20 × 276,468.55
  4. Step 4: Simplify right side
    480,450.54x = 183,295,939,258.21
  5. Step 5: Solve for x
    x = 183,295,939,258.21/480,450.54
  6. Step 6: Final answer
    x = 381,508.45

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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.