Home / 413,697.30-619,985.39-214,157.78

Finding the Fourth Proportional to 413,697.30, 619,985.39 and 214,157.78

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Solution

The fourth proportional to 413,697.30, 619,985.39 and 214,157.78 is: 320,946.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,697.30 : 619,985.39 = 214,157.78 : x
  2. Step 2: Convert to fraction form
    413,697.30/619,985.39 = 214,157.78/x
  3. Step 3: Cross multiply
    413,697.30x = 619,985.39 × 214,157.78
  4. Step 4: Simplify right side
    413,697.30x = 132,774,690,584.12
  5. Step 5: Solve for x
    x = 132,774,690,584.12/413,697.30
  6. Step 6: Final answer
    x = 320,946.48

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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.