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Finding the Fourth Proportional to 480,854.26, 663,628.31 and 276,912.87

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Solution

The fourth proportional to 480,854.26, 663,628.31 and 276,912.87 is: 382,168.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,854.26 : 663,628.31 = 276,912.87 : x
  2. Step 2: Convert to fraction form
    480,854.26/663,628.31 = 276,912.87/x
  3. Step 3: Cross multiply
    480,854.26x = 663,628.31 × 276,912.87
  4. Step 4: Simplify right side
    480,854.26x = 183,767,219,935.35
  5. Step 5: Solve for x
    x = 183,767,219,935.35/480,854.26
  6. Step 6: Final answer
    x = 382,168.23

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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.