Home / 689,424.01-1,034,136.32-216,146.27

Finding the Fourth Proportional to 689,424.01, 1,034,136.32 and 216,146.27

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Solution

The fourth proportional to 689,424.01, 1,034,136.32 and 216,146.27 is: 324,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,424.01 : 1,034,136.32 = 216,146.27 : x
  2. Step 2: Convert to fraction form
    689,424.01/1,034,136.32 = 216,146.27/x
  3. Step 3: Cross multiply
    689,424.01x = 1,034,136.32 × 216,146.27
  4. Step 4: Simplify right side
    689,424.01x = 223,524,709,744.14
  5. Step 5: Solve for x
    x = 223,524,709,744.14/689,424.01
  6. Step 6: Final answer
    x = 324,219.50

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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.