Home / 999,651.47-1,378,958.22-612,654.35

Finding the Fourth Proportional to 999,651.47, 1,378,958.22 and 612,654.35

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Solution

The fourth proportional to 999,651.47, 1,378,958.22 and 612,654.35 is: 845,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,651.47 : 1,378,958.22 = 612,654.35 : x
  2. Step 2: Convert to fraction form
    999,651.47/1,378,958.22 = 612,654.35/x
  3. Step 3: Cross multiply
    999,651.47x = 1,378,958.22 × 612,654.35
  4. Step 4: Simplify right side
    999,651.47x = 844,824,745,056.47
  5. Step 5: Solve for x
    x = 844,824,745,056.47/999,651.47
  6. Step 6: Final answer
    x = 845,119.30

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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.