Home / 513,601.48-769,984.65-214,305.01

Finding the Fourth Proportional to 513,601.48, 769,984.65 and 214,305.01

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Solution

The fourth proportional to 513,601.48, 769,984.65 and 214,305.01 is: 321,283.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,601.48 : 769,984.65 = 214,305.01 : x
  2. Step 2: Convert to fraction form
    513,601.48/769,984.65 = 214,305.01/x
  3. Step 3: Cross multiply
    513,601.48x = 769,984.65 × 214,305.01
  4. Step 4: Simplify right side
    513,601.48x = 165,011,568,118.10
  5. Step 5: Solve for x
    x = 165,011,568,118.10/513,601.48
  6. Step 6: Final answer
    x = 321,283.28

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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.