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Finding the Fourth Proportional to 493,278.39, 680,781.60 and 410,345.91

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Solution

The fourth proportional to 493,278.39, 680,781.60 and 410,345.91 is: 566,325.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,278.39 : 680,781.60 = 410,345.91 : x
  2. Step 2: Convert to fraction form
    493,278.39/680,781.60 = 410,345.91/x
  3. Step 3: Cross multiply
    493,278.39x = 680,781.60 × 410,345.91
  4. Step 4: Simplify right side
    493,278.39x = 279,355,945,163.26
  5. Step 5: Solve for x
    x = 279,355,945,163.26/493,278.39
  6. Step 6: Final answer
    x = 566,325.12

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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.