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Finding the Fourth Proportional to 700,729.10, 967,005.92 and 378,439.26

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Solution

The fourth proportional to 700,729.10, 967,005.92 and 378,439.26 is: 522,246.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,729.10 : 967,005.92 = 378,439.26 : x
  2. Step 2: Convert to fraction form
    700,729.10/967,005.92 = 378,439.26/x
  3. Step 3: Cross multiply
    700,729.10x = 967,005.92 × 378,439.26
  4. Step 4: Simplify right side
    700,729.10x = 365,953,004,780.42
  5. Step 5: Solve for x
    x = 365,953,004,780.42/700,729.10
  6. Step 6: Final answer
    x = 522,246.05

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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.