Home / 456,128.79-629,439.17-252,166.74

Finding the Fourth Proportional to 456,128.79, 629,439.17 and 252,166.74

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Solution

The fourth proportional to 456,128.79, 629,439.17 and 252,166.74 is: 347,979.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,128.79 : 629,439.17 = 252,166.74 : x
  2. Step 2: Convert to fraction form
    456,128.79/629,439.17 = 252,166.74/x
  3. Step 3: Cross multiply
    456,128.79x = 629,439.17 × 252,166.74
  4. Step 4: Simplify right side
    456,128.79x = 158,723,622,266.37
  5. Step 5: Solve for x
    x = 158,723,622,266.37/456,128.79
  6. Step 6: Final answer
    x = 347,979.84

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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.