Home / 642,727.40-964,086.06-193,446.32

Finding the Fourth Proportional to 642,727.40, 964,086.06 and 193,446.32

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Solution

The fourth proportional to 642,727.40, 964,086.06 and 193,446.32 is: 290,167.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,727.40 : 964,086.06 = 193,446.32 : x
  2. Step 2: Convert to fraction form
    642,727.40/964,086.06 = 193,446.32/x
  3. Step 3: Cross multiply
    642,727.40x = 964,086.06 × 193,446.32
  4. Step 4: Simplify right side
    642,727.40x = 186,498,900,470.30
  5. Step 5: Solve for x
    x = 186,498,900,470.30/642,727.40
  6. Step 6: Final answer
    x = 290,167.96

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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.