Home / 456,170.03-629,376.38-318,345.29

Finding the Fourth Proportional to 456,170.03, 629,376.38 and 318,345.29

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Solution

The fourth proportional to 456,170.03, 629,376.38 and 318,345.29 is: 439,220.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,170.03 : 629,376.38 = 318,345.29 : x
  2. Step 2: Convert to fraction form
    456,170.03/629,376.38 = 318,345.29/x
  3. Step 3: Cross multiply
    456,170.03x = 629,376.38 × 318,345.29
  4. Step 4: Simplify right side
    456,170.03x = 200,359,005,025.60
  5. Step 5: Solve for x
    x = 200,359,005,025.60/456,170.03
  6. Step 6: Final answer
    x = 439,220.01

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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.