Home / 426,127.46-639,435.40-173,361.29

Finding the Fourth Proportional to 426,127.46, 639,435.40 and 173,361.29

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Solution

The fourth proportional to 426,127.46, 639,435.40 and 173,361.29 is: 260,141.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,127.46 : 639,435.40 = 173,361.29 : x
  2. Step 2: Convert to fraction form
    426,127.46/639,435.40 = 173,361.29/x
  3. Step 3: Cross multiply
    426,127.46x = 639,435.40 × 173,361.29
  4. Step 4: Simplify right side
    426,127.46x = 110,853,345,815.67
  5. Step 5: Solve for x
    x = 110,853,345,815.67/426,127.46
  6. Step 6: Final answer
    x = 260,141.29

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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.