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Finding the Fourth Proportional to 480,258.48, 662,808 and 276,318.32

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Solution

The fourth proportional to 480,258.48, 662,808 and 276,318.32 is: 381,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,258.48 : 662,808 = 276,318.32 : x
  2. Step 2: Convert to fraction form
    480,258.48/662,808 = 276,318.32/x
  3. Step 3: Cross multiply
    480,258.48x = 662,808 × 276,318.32
  4. Step 4: Simplify right side
    480,258.48x = 183,145,993,042.56
  5. Step 5: Solve for x
    x = 183,145,993,042.56/480,258.48
  6. Step 6: Final answer
    x = 381,348.80

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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.