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Finding the Fourth Proportional to 480,214.82, 662,820.92 and 276,286.62

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Solution

The fourth proportional to 480,214.82, 662,820.92 and 276,286.62 is: 381,347.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,214.82 : 662,820.92 = 276,286.62 : x
  2. Step 2: Convert to fraction form
    480,214.82/662,820.92 = 276,286.62/x
  3. Step 3: Cross multiply
    480,214.82x = 662,820.92 × 276,286.62
  4. Step 4: Simplify right side
    480,214.82x = 183,128,551,652.09
  5. Step 5: Solve for x
    x = 183,128,551,652.09/480,214.82
  6. Step 6: Final answer
    x = 381,347.15

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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.