Home / 985,651.80-1,479,099.56-386,596.96

Finding the Fourth Proportional to 985,651.80, 1,479,099.56 and 386,596.96

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Solution

The fourth proportional to 985,651.80, 1,479,099.56 and 386,596.96 is: 580,139.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,651.80 : 1,479,099.56 = 386,596.96 : x
  2. Step 2: Convert to fraction form
    985,651.80/1,479,099.56 = 386,596.96/x
  3. Step 3: Cross multiply
    985,651.80x = 1,479,099.56 × 386,596.96
  4. Step 4: Simplify right side
    985,651.80x = 571,815,393,433.34
  5. Step 5: Solve for x
    x = 571,815,393,433.34/985,651.80
  6. Step 6: Final answer
    x = 580,139.35

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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.