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Finding the Fourth Proportional to 445,860.77, 611,504.72 and 427,550.81

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Solution

The fourth proportional to 445,860.77, 611,504.72 and 427,550.81 is: 586,392.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,860.77 : 611,504.72 = 427,550.81 : x
  2. Step 2: Convert to fraction form
    445,860.77/611,504.72 = 427,550.81/x
  3. Step 3: Cross multiply
    445,860.77x = 611,504.72 × 427,550.81
  4. Step 4: Simplify right side
    445,860.77x = 261,449,337,167.83
  5. Step 5: Solve for x
    x = 261,449,337,167.83/445,860.77
  6. Step 6: Final answer
    x = 586,392.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.