Home / 513,439.42-769,641.54-214,085.30

Finding the Fourth Proportional to 513,439.42, 769,641.54 and 214,085.30

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Solution

The fourth proportional to 513,439.42, 769,641.54 and 214,085.30 is: 320,912.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,439.42 : 769,641.54 = 214,085.30 : x
  2. Step 2: Convert to fraction form
    513,439.42/769,641.54 = 214,085.30/x
  3. Step 3: Cross multiply
    513,439.42x = 769,641.54 × 214,085.30
  4. Step 4: Simplify right side
    513,439.42x = 164,768,939,983.36
  5. Step 5: Solve for x
    x = 164,768,939,983.36/513,439.42
  6. Step 6: Final answer
    x = 320,912.13

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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.