Home / 689,428.51-1,034,143.07-216,150.77

Finding the Fourth Proportional to 689,428.51, 1,034,143.07 and 216,150.77

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Solution

The fourth proportional to 689,428.51, 1,034,143.07 and 216,150.77 is: 324,226.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,428.51 : 1,034,143.07 = 216,150.77 : x
  2. Step 2: Convert to fraction form
    689,428.51/1,034,143.07 = 216,150.77/x
  3. Step 3: Cross multiply
    689,428.51x = 1,034,143.07 × 216,150.77
  4. Step 4: Simplify right side
    689,428.51x = 223,530,820,870.66
  5. Step 5: Solve for x
    x = 223,530,820,870.66/689,428.51
  6. Step 6: Final answer
    x = 324,226.25

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Similar ratio
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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.