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Finding the Fourth Proportional to 646,762.32, 969,786.39 and 300,167.94

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Solution

The fourth proportional to 646,762.32, 969,786.39 and 300,167.94 is: 450,086.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,762.32 : 969,786.39 = 300,167.94 : x
  2. Step 2: Convert to fraction form
    646,762.32/969,786.39 = 300,167.94/x
  3. Step 3: Cross multiply
    646,762.32x = 969,786.39 × 300,167.94
  4. Step 4: Simplify right side
    646,762.32x = 291,098,782,926.34
  5. Step 5: Solve for x
    x = 291,098,782,926.34/646,762.32
  6. Step 6: Final answer
    x = 450,086.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.