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Finding the Fourth Proportional to 682,861.71, 942,349.34 and 376,938.27

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Solution

The fourth proportional to 682,861.71, 942,349.34 and 376,938.27 is: 520,174.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,861.71 : 942,349.34 = 376,938.27 : x
  2. Step 2: Convert to fraction form
    682,861.71/942,349.34 = 376,938.27/x
  3. Step 3: Cross multiply
    682,861.71x = 942,349.34 × 376,938.27
  4. Step 4: Simplify right side
    682,861.71x = 355,207,533,017.88
  5. Step 5: Solve for x
    x = 355,207,533,017.88/682,861.71
  6. Step 6: Final answer
    x = 520,174.92

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Double scale
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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.