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Finding the Fourth Proportional to 480,317.76, 662,863.68 and 276,399.72

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Solution

The fourth proportional to 480,317.76, 662,863.68 and 276,399.72 is: 381,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,317.76 : 662,863.68 = 276,399.72 : x
  2. Step 2: Convert to fraction form
    480,317.76/662,863.68 = 276,399.72/x
  3. Step 3: Cross multiply
    480,317.76x = 662,863.68 × 276,399.72
  4. Step 4: Simplify right side
    480,317.76x = 183,215,335,550.17
  5. Step 5: Solve for x
    x = 183,215,335,550.17/480,317.76
  6. Step 6: Final answer
    x = 381,446.10

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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.