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Finding the Fourth Proportional to 682,864.10, 942,352.64 and 376,940.68

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Solution

The fourth proportional to 682,864.10, 942,352.64 and 376,940.68 is: 520,178.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,864.10 : 942,352.64 = 376,940.68 : x
  2. Step 2: Convert to fraction form
    682,864.10/942,352.64 = 376,940.68/x
  3. Step 3: Cross multiply
    682,864.10x = 942,352.64 × 376,940.68
  4. Step 4: Simplify right side
    682,864.10x = 355,211,043,507.87
  5. Step 5: Solve for x
    x = 355,211,043,507.87/682,864.10
  6. Step 6: Final answer
    x = 520,178.24

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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.