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Finding the Fourth Proportional to 558,238.55, 836,978.78 and 284,010.75

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Solution

The fourth proportional to 558,238.55, 836,978.78 and 284,010.75 is: 425,823.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,238.55 : 836,978.78 = 284,010.75 : x
  2. Step 2: Convert to fraction form
    558,238.55/836,978.78 = 284,010.75/x
  3. Step 3: Cross multiply
    558,238.55x = 836,978.78 × 284,010.75
  4. Step 4: Simplify right side
    558,238.55x = 237,710,971,751.91
  5. Step 5: Solve for x
    x = 237,710,971,751.91/558,238.55
  6. Step 6: Final answer
    x = 425,823.29

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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.