Home / 689,099.67-1,033,649.51-215,822.07

Finding the Fourth Proportional to 689,099.67, 1,033,649.51 and 215,822.07

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Solution

The fourth proportional to 689,099.67, 1,033,649.51 and 215,822.07 is: 323,733.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,099.67 : 1,033,649.51 = 215,822.07 : x
  2. Step 2: Convert to fraction form
    689,099.67/1,033,649.51 = 215,822.07/x
  3. Step 3: Cross multiply
    689,099.67x = 1,033,649.51 × 215,822.07
  4. Step 4: Simplify right side
    689,099.67x = 223,084,375,823.58
  5. Step 5: Solve for x
    x = 223,084,375,823.58/689,099.67
  6. Step 6: Final answer
    x = 323,733.11

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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.