Home / 689,018.22-1,033,550.40-239,776.80

Finding the Fourth Proportional to 689,018.22, 1,033,550.40 and 239,776.80

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Solution

The fourth proportional to 689,018.22, 1,033,550.40 and 239,776.80 is: 359,673.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,018.22 : 1,033,550.40 = 239,776.80 : x
  2. Step 2: Convert to fraction form
    689,018.22/1,033,550.40 = 239,776.80/x
  3. Step 3: Cross multiply
    689,018.22x = 1,033,550.40 × 239,776.80
  4. Step 4: Simplify right side
    689,018.22x = 247,821,407,550.72
  5. Step 5: Solve for x
    x = 247,821,407,550.72/689,018.22
  6. Step 6: Final answer
    x = 359,673.23

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Double scale
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Similar ratio
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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.