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Finding the Fourth Proportional to 700,728.10, 967,004.54 and 378,438.27

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Solution

The fourth proportional to 700,728.10, 967,004.54 and 378,438.27 is: 522,244.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,728.10 : 967,004.54 = 378,438.27 : x
  2. Step 2: Convert to fraction form
    700,728.10/967,004.54 = 378,438.27/x
  3. Step 3: Cross multiply
    700,728.10x = 967,004.54 × 378,438.27
  4. Step 4: Simplify right side
    700,728.10x = 365,951,520,364.72
  5. Step 5: Solve for x
    x = 365,951,520,364.72/700,728.10
  6. Step 6: Final answer
    x = 522,244.68

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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.