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Finding the Fourth Proportional to 683,830.82, 943,689.42 and 373,739.68

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Solution

The fourth proportional to 683,830.82, 943,689.42 and 373,739.68 is: 515,762.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,830.82 : 943,689.42 = 373,739.68 : x
  2. Step 2: Convert to fraction form
    683,830.82/943,689.42 = 373,739.68/x
  3. Step 3: Cross multiply
    683,830.82x = 943,689.42 × 373,739.68
  4. Step 4: Simplify right side
    683,830.82x = 352,694,181,850.19
  5. Step 5: Solve for x
    x = 352,694,181,850.19/683,830.82
  6. Step 6: Final answer
    x = 515,762.34

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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.