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Finding the Fourth Proportional to 700,931.63, 967,284.41 and 378,640.73

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Solution

The fourth proportional to 700,931.63, 967,284.41 and 378,640.73 is: 522,523.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,931.63 : 967,284.41 = 378,640.73 : x
  2. Step 2: Convert to fraction form
    700,931.63/967,284.41 = 378,640.73/x
  3. Step 3: Cross multiply
    700,931.63x = 967,284.41 × 378,640.73
  4. Step 4: Simplify right side
    700,931.63x = 366,253,275,645.03
  5. Step 5: Solve for x
    x = 366,253,275,645.03/700,931.63
  6. Step 6: Final answer
    x = 522,523.54

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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.