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Finding the Fourth Proportional to 682,980.88, 942,514.81 and 377,057.76

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Solution

The fourth proportional to 682,980.88, 942,514.81 and 377,057.76 is: 520,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,980.88 : 942,514.81 = 377,057.76 : x
  2. Step 2: Convert to fraction form
    682,980.88/942,514.81 = 377,057.76/x
  3. Step 3: Cross multiply
    682,980.88x = 942,514.81 × 377,057.76
  4. Step 4: Simplify right side
    682,980.88x = 355,382,523,025.43
  5. Step 5: Solve for x
    x = 355,382,523,025.43/682,980.88
  6. Step 6: Final answer
    x = 520,340.37

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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.