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Finding the Fourth Proportional to 453,953.70, 680,930.55 and 276,806.70

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Solution

The fourth proportional to 453,953.70, 680,930.55 and 276,806.70 is: 415,210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,953.70 : 680,930.55 = 276,806.70 : x
  2. Step 2: Convert to fraction form
    453,953.70/680,930.55 = 276,806.70/x
  3. Step 3: Cross multiply
    453,953.70x = 680,930.55 × 276,806.70
  4. Step 4: Simplify right side
    453,953.70x = 188,486,138,474.69
  5. Step 5: Solve for x
    x = 188,486,138,474.69/453,953.70
  6. Step 6: Final answer
    x = 415,210.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.