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Finding the Fourth Proportional to 480,490.14, 663,142.23 and 276,536.91

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Solution

The fourth proportional to 480,490.14, 663,142.23 and 276,536.91 is: 381,658.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,490.14 : 663,142.23 = 276,536.91 : x
  2. Step 2: Convert to fraction form
    480,490.14/663,142.23 = 276,536.91/x
  3. Step 3: Cross multiply
    480,490.14x = 663,142.23 × 276,536.91
  4. Step 4: Simplify right side
    480,490.14x = 183,383,303,174.71
  5. Step 5: Solve for x
    x = 183,383,303,174.71/480,490.14
  6. Step 6: Final answer
    x = 381,658.83

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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.