Home / 389,697.61-584,569.10-109,236.73

Finding the Fourth Proportional to 389,697.61, 584,569.10 and 109,236.73

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Solution

The fourth proportional to 389,697.61, 584,569.10 and 109,236.73 is: 163,861.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,697.61 : 584,569.10 = 109,236.73 : x
  2. Step 2: Convert to fraction form
    389,697.61/584,569.10 = 109,236.73/x
  3. Step 3: Cross multiply
    389,697.61x = 584,569.10 × 109,236.73
  4. Step 4: Simplify right side
    389,697.61x = 63,856,416,396.86
  5. Step 5: Solve for x
    x = 63,856,416,396.86/389,697.61
  6. Step 6: Final answer
    x = 163,861.45

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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.