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Finding the Fourth Proportional to 454,345.20, 680,934.60 and 276,663.60

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Solution

The fourth proportional to 454,345.20, 680,934.60 and 276,663.60 is: 414,640.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,345.20 : 680,934.60 = 276,663.60 : x
  2. Step 2: Convert to fraction form
    454,345.20/680,934.60 = 276,663.60/x
  3. Step 3: Cross multiply
    454,345.20x = 680,934.60 × 276,663.60
  4. Step 4: Simplify right side
    454,345.20x = 188,389,817,800.56
  5. Step 5: Solve for x
    x = 188,389,817,800.56/454,345.20
  6. Step 6: Final answer
    x = 414,640.27

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1.5x scale

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.