Home / 456,420.09-629,811.27-252,438.60

Finding the Fourth Proportional to 456,420.09, 629,811.27 and 252,438.60

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Solution

The fourth proportional to 456,420.09, 629,811.27 and 252,438.60 is: 348,338.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,420.09 : 629,811.27 = 252,438.60 : x
  2. Step 2: Convert to fraction form
    456,420.09/629,811.27 = 252,438.60/x
  3. Step 3: Cross multiply
    456,420.09x = 629,811.27 × 252,438.60
  4. Step 4: Simplify right side
    456,420.09x = 158,988,675,263.02
  5. Step 5: Solve for x
    x = 158,988,675,263.02/456,420.09
  6. Step 6: Final answer
    x = 348,338.47

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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.