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Finding the Fourth Proportional to 700,878, 967,212.02 and 378,588.09

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Solution

The fourth proportional to 700,878, 967,212.02 and 378,588.09 is: 522,451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,878 : 967,212.02 = 378,588.09 : x
  2. Step 2: Convert to fraction form
    700,878/967,212.02 = 378,588.09/x
  3. Step 3: Cross multiply
    700,878x = 967,212.02 × 378,588.09
  4. Step 4: Simplify right side
    700,878x = 366,174,949,383.90
  5. Step 5: Solve for x
    x = 366,174,949,383.90/700,878
  6. Step 6: Final answer
    x = 522,451.77

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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.