Home / 689,911.56-1,035,022.82-210,182.28

Finding the Fourth Proportional to 689,911.56, 1,035,022.82 and 210,182.28

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Solution

The fourth proportional to 689,911.56, 1,035,022.82 and 210,182.28 is: 315,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,911.56 : 1,035,022.82 = 210,182.28 : x
  2. Step 2: Convert to fraction form
    689,911.56/1,035,022.82 = 210,182.28/x
  3. Step 3: Cross multiply
    689,911.56x = 1,035,022.82 × 210,182.28
  4. Step 4: Simplify right side
    689,911.56x = 217,543,456,159.63
  5. Step 5: Solve for x
    x = 217,543,456,159.63/689,911.56
  6. Step 6: Final answer
    x = 315,320.79

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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.