Home / 782,886.40-1,174,286.26-214,226.68

Finding the Fourth Proportional to 782,886.40, 1,174,286.26 and 214,226.68

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Solution

The fourth proportional to 782,886.40, 1,174,286.26 and 214,226.68 is: 321,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,886.40 : 1,174,286.26 = 214,226.68 : x
  2. Step 2: Convert to fraction form
    782,886.40/1,174,286.26 = 214,226.68/x
  3. Step 3: Cross multiply
    782,886.40x = 1,174,286.26 × 214,226.68
  4. Step 4: Simplify right side
    782,886.40x = 251,563,446,849.42
  5. Step 5: Solve for x
    x = 251,563,446,849.42/782,886.40
  6. Step 6: Final answer
    x = 321,328.16

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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.