Home / 389,634.60-584,682.30-284,188.20

Finding the Fourth Proportional to 389,634.60, 584,682.30 and 284,188.20

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Solution

The fourth proportional to 389,634.60, 584,682.30 and 284,188.20 is: 426,450.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,634.60 : 584,682.30 = 284,188.20 : x
  2. Step 2: Convert to fraction form
    389,634.60/584,682.30 = 284,188.20/x
  3. Step 3: Cross multiply
    389,634.60x = 584,682.30 × 284,188.20
  4. Step 4: Simplify right side
    389,634.60x = 166,159,810,408.86
  5. Step 5: Solve for x
    x = 166,159,810,408.86/389,634.60
  6. Step 6: Final answer
    x = 426,450.35

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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.