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Finding the Fourth Proportional to 851,473.08, 1,173,811.92 and 669,869.66

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Solution

The fourth proportional to 851,473.08, 1,173,811.92 and 669,869.66 is: 923,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,473.08 : 1,173,811.92 = 669,869.66 : x
  2. Step 2: Convert to fraction form
    851,473.08/1,173,811.92 = 669,869.66/x
  3. Step 3: Cross multiply
    851,473.08x = 1,173,811.92 × 669,869.66
  4. Step 4: Simplify right side
    851,473.08x = 786,300,991,754.35
  5. Step 5: Solve for x
    x = 786,300,991,754.35/851,473.08
  6. Step 6: Final answer
    x = 923,459.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.