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Finding the Fourth Proportional to 419,657, 629,037.24 and 239,354.18

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Solution

The fourth proportional to 419,657, 629,037.24 and 239,354.18 is: 358,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,657 : 629,037.24 = 239,354.18 : x
  2. Step 2: Convert to fraction form
    419,657/629,037.24 = 239,354.18/x
  3. Step 3: Cross multiply
    419,657x = 629,037.24 × 239,354.18
  4. Step 4: Simplify right side
    419,657x = 150,562,692,769.66
  5. Step 5: Solve for x
    x = 150,562,692,769.66/419,657
  6. Step 6: Final answer
    x = 358,775.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.