Home / 689,662.20-1,033,877.70-268,840.20

Finding the Fourth Proportional to 689,662.20, 1,033,877.70 and 268,840.20

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Solution

The fourth proportional to 689,662.20, 1,033,877.70 and 268,840.20 is: 403,020.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,662.20 : 1,033,877.70 = 268,840.20 : x
  2. Step 2: Convert to fraction form
    689,662.20/1,033,877.70 = 268,840.20/x
  3. Step 3: Cross multiply
    689,662.20x = 1,033,877.70 × 268,840.20
  4. Step 4: Simplify right side
    689,662.20x = 277,947,887,643.54
  5. Step 5: Solve for x
    x = 277,947,887,643.54/689,662.20
  6. Step 6: Final answer
    x = 403,020.33

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1.5x scale

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.