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Finding the Fourth Proportional to 669,408.53, 923,552.85 and 427,832.51

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Solution

The fourth proportional to 669,408.53, 923,552.85 and 427,832.51 is: 590,261.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,408.53 : 923,552.85 = 427,832.51 : x
  2. Step 2: Convert to fraction form
    669,408.53/923,552.85 = 427,832.51/x
  3. Step 3: Cross multiply
    669,408.53x = 923,552.85 × 427,832.51
  4. Step 4: Simplify right side
    669,408.53x = 395,125,933,933.15
  5. Step 5: Solve for x
    x = 395,125,933,933.15/669,408.53
  6. Step 6: Final answer
    x = 590,261.28

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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.