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Finding the Fourth Proportional to 682,980.76, 942,514.64 and 377,057.63

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Solution

The fourth proportional to 682,980.76, 942,514.64 and 377,057.63 is: 520,340.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,980.76 : 942,514.64 = 377,057.63 : x
  2. Step 2: Convert to fraction form
    682,980.76/942,514.64 = 377,057.63/x
  3. Step 3: Cross multiply
    682,980.76x = 942,514.64 × 377,057.63
  4. Step 4: Simplify right side
    682,980.76x = 355,382,338,990.49
  5. Step 5: Solve for x
    x = 355,382,338,990.49/682,980.76
  6. Step 6: Final answer
    x = 520,340.19

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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.