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Finding the Fourth Proportional to 631,842.49, 947,763.87 and 211,118.41

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Solution

The fourth proportional to 631,842.49, 947,763.87 and 211,118.41 is: 316,677.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,842.49 : 947,763.87 = 211,118.41 : x
  2. Step 2: Convert to fraction form
    631,842.49/947,763.87 = 211,118.41/x
  3. Step 3: Cross multiply
    631,842.49x = 947,763.87 × 211,118.41
  4. Step 4: Simplify right side
    631,842.49x = 200,090,401,289.85
  5. Step 5: Solve for x
    x = 200,090,401,289.85/631,842.49
  6. Step 6: Final answer
    x = 316,677.66

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Double scale
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Similar ratio
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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.