Home / 861,052.62-1,291,580.01-411,667.86

Finding the Fourth Proportional to 861,052.62, 1,291,580.01 and 411,667.86

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Solution

The fourth proportional to 861,052.62, 1,291,580.01 and 411,667.86 is: 617,502.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,052.62 : 1,291,580.01 = 411,667.86 : x
  2. Step 2: Convert to fraction form
    861,052.62/1,291,580.01 = 411,667.86/x
  3. Step 3: Cross multiply
    861,052.62x = 1,291,580.01 × 411,667.86
  4. Step 4: Simplify right side
    861,052.62x = 531,701,978,735.48
  5. Step 5: Solve for x
    x = 531,701,978,735.48/861,052.62
  6. Step 6: Final answer
    x = 617,502.31

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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.