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Finding the Fourth Proportional to 669,413, 923,796.42 and 367,613.48

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Solution

The fourth proportional to 669,413, 923,796.42 and 367,613.48 is: 507,310.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,413 : 923,796.42 = 367,613.48 : x
  2. Step 2: Convert to fraction form
    669,413/923,796.42 = 367,613.48/x
  3. Step 3: Cross multiply
    669,413x = 923,796.42 × 367,613.48
  4. Step 4: Simplify right side
    669,413x = 339,600,016,767.74
  5. Step 5: Solve for x
    x = 339,600,016,767.74/669,413
  6. Step 6: Final answer
    x = 507,310.16

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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.