Home / 688,634.28-1,033,010.88-189,998.28

Finding the Fourth Proportional to 688,634.28, 1,033,010.88 and 189,998.28

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Solution

The fourth proportional to 688,634.28, 1,033,010.88 and 189,998.28 is: 285,013.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,634.28 : 1,033,010.88 = 189,998.28 : x
  2. Step 2: Convert to fraction form
    688,634.28/1,033,010.88 = 189,998.28/x
  3. Step 3: Cross multiply
    688,634.28x = 1,033,010.88 × 189,998.28
  4. Step 4: Simplify right side
    688,634.28x = 196,270,290,421.29
  5. Step 5: Solve for x
    x = 196,270,290,421.29/688,634.28
  6. Step 6: Final answer
    x = 285,013.83

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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.