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Finding the Fourth Proportional to 456,428.60, 629,823 and 252,447.12

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Solution

The fourth proportional to 456,428.60, 629,823 and 252,447.12 is: 348,350.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,428.60 : 629,823 = 252,447.12 : x
  2. Step 2: Convert to fraction form
    456,428.60/629,823 = 252,447.12/x
  3. Step 3: Cross multiply
    456,428.60x = 629,823 × 252,447.12
  4. Step 4: Simplify right side
    456,428.60x = 158,997,002,459.76
  5. Step 5: Solve for x
    x = 158,997,002,459.76/456,428.60
  6. Step 6: Final answer
    x = 348,350.22

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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.