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Finding the Fourth Proportional to 682,863.71, 942,352.10 and 376,940.27

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Solution

The fourth proportional to 682,863.71, 942,352.10 and 376,940.27 is: 520,177.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,863.71 : 942,352.10 = 376,940.27 : x
  2. Step 2: Convert to fraction form
    682,863.71/942,352.10 = 376,940.27/x
  3. Step 3: Cross multiply
    682,863.71x = 942,352.10 × 376,940.27
  4. Step 4: Simplify right side
    682,863.71x = 355,210,455,009.07
  5. Step 5: Solve for x
    x = 355,210,455,009.07/682,863.71
  6. Step 6: Final answer
    x = 520,177.67

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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.