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Finding the Fourth Proportional to 480,406.62, 663,027 and 276,453.36

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Solution

The fourth proportional to 480,406.62, 663,027 and 276,453.36 is: 381,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,406.62 : 663,027 = 276,453.36 : x
  2. Step 2: Convert to fraction form
    480,406.62/663,027 = 276,453.36/x
  3. Step 3: Cross multiply
    480,406.62x = 663,027 × 276,453.36
  4. Step 4: Simplify right side
    480,406.62x = 183,296,041,920.72
  5. Step 5: Solve for x
    x = 183,296,041,920.72/480,406.62
  6. Step 6: Final answer
    x = 381,543.54

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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.