Home / 688,628.25-1,033,001.91-189,992.25

Finding the Fourth Proportional to 688,628.25, 1,033,001.91 and 189,992.25

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Solution

The fourth proportional to 688,628.25, 1,033,001.91 and 189,992.25 is: 285,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,628.25 : 1,033,001.91 = 189,992.25 : x
  2. Step 2: Convert to fraction form
    688,628.25/1,033,001.91 = 189,992.25/x
  3. Step 3: Cross multiply
    688,628.25x = 1,033,001.91 × 189,992.25
  4. Step 4: Simplify right side
    688,628.25x = 196,262,357,135.20
  5. Step 5: Solve for x
    x = 196,262,357,135.20/688,628.25
  6. Step 6: Final answer
    x = 285,004.80

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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.