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Finding the Fourth Proportional to 624,692.64, 862,076.32 and 338,212.96

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Solution

The fourth proportional to 624,692.64, 862,076.32 and 338,212.96 is: 466,734.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,692.64 : 862,076.32 = 338,212.96 : x
  2. Step 2: Convert to fraction form
    624,692.64/862,076.32 = 338,212.96/x
  3. Step 3: Cross multiply
    624,692.64x = 862,076.32 × 338,212.96
  4. Step 4: Simplify right side
    624,692.64x = 291,565,383,933.11
  5. Step 5: Solve for x
    x = 291,565,383,933.11/624,692.64
  6. Step 6: Final answer
    x = 466,734.14

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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.